List of exoplanet firsts

| 1992

| First super-Earths.Space.com, [http://www.space.com/scienceastronomy/aas_earthsize_020329.html "Earth-Sized Planets Confirmed, But They're Dead Worlds"], Robert Roy Britt, 29 May 2003 (accessed 20-10-2010)

These exoplanets orbit a pulsar.

First confirmed exoplanet around normal star

| 1995

| First convincing exoplanet discovered around a Sun-like star.{{cite journal | last1 = Queloz | first1 = Didier | date = 2006 | title = Extrasolar planets: Light through a gravitational lens | journal = Nature | volume = 439 | issue = 7075| pages = 400–401 | doi = 10.1038/439400a | bibcode = 2006Natur.439..400Q | pmid=16437096| s2cid = 4372378 }} While the minimum mass of HD 114762 b was high enough (11 Jupiter-masses) that it could be a brown dwarf, 51 Peg b's minimum mass meant that it almost certainly was near the mass of Jupiter.

By discovery method

class="wikitable" border="1" style="text-align:left;" \|+ First discovery by a method
style="background:#efefef;"\| Discovery method ! style="background:#efefef;"\| Planet ! style="background:#efefef;"\| Star ! style="background:#efefef;"\| Year ! style="background:#efefef;"\| Notes
First planet discovered via pulsar timing \| PSR B1257+12 B PSR B1257+12 C \| PSR B1257+12 \| 1992 \| First super-earths.
First planet discovered via radial velocity \| 51 Pegasi b \| 51 Pegasi \| 1995 \| First convincing exoplanet discovered around a Sun-like star. While the minimum mass of HD 114762 b was high enough (11 Jupiter-masses) that it could be a brown dwarf, 51 Peg b's minimum mass meant that it almost certainly was near the mass of Jupiter.
First planet discovered via transit \| OGLE-TR-56 b \| OGLE-TR-56 \| 2002 \| SpaceDaily.com, [http://www.spacedaily.com/reports/Farthest_Known_Planet_Opens_the_Door_For_Finding_New_Earths.html "Farthest Known Planet Opens the Door For Finding New Earths"], 10 January 2003 (accessed 2010-10-24) This was also the second planet detected through transiting, and the then farthest planet known at time of discovery. The first extrasolar planet detected to be transiting was HD 209458 b, which had already been discovered by the radial velocity method.PhysOrg.com, [http://www.physorg.com/news3475.html "New Era in Planetary Science"], 23 March 2005 (accessed 2010-10-24)
First planet discovered via gravitational lensing \| OGLE-2003-BLG-235/MOA-2003-BLG-53#Planetary system \| OGLE-2003-BLG-235/MOA-2003-BLG-53 \| 2004 \| This was discovered independently by the OGLE and MOA teams.Sky and Telescope, [http://www.skyandtelescope.com/news/3309016.html?page=1&c=y "First Planet Found by Microlensing"], Alan M. MacRobert, 16 April 2004 (accessed 2010-10-24)
First exoplanet discovered by directly imaging the extrasolar planet \|2M1207 b \|2M1207 \|2004/ 2005 \|May be a brown dwarf instead of a planet, depending on formation mechanism and definitions chosen.ESO press releases [https://www.eso.org/public/news/eso0428/] [https://www.eso.org/public/news/eso0515/]
First planet discovered through variable star timing \| V391 Pegasi b \| V391 Pegasi \| 2007 \| The planet was discovered by examining deviations from pulsation frequency from a subdwarf star.{{Cite journal \|doi = 10.1038/nature06143\|pmid = 17851517\|title = A giant planet orbiting the 'extreme horizontal branch' star V 391 Pegasi\|journal = Nature\|volume = 449\|issue = 7159\|pages = 189–191\|year = 2007\|last1 = Silvotti\|first1 = R.\|last2 = Schuh\|first2 = S.\|last3 = Janulis\|first3 = R.\|last4 = Solheim\|first4 = J.-E.\|last5 = Bernabei\|first5 = S.\|last6 = Østensen\|first6 = R.\|last7 = Oswalt\|first7 = T. D.\|last8 = Bruni\|first8 = I.\|last9 = Gualandi\|first9 = R.\|last10 = Bonanno\|first10 = A.\|last11 = Vauclair\|first11 = G.\|last12 = Reed\|first12 = M.\|last13 = Chen\|first13 = C.-W.\|last14 = Leibowitz\|first14 = E.\|last15 = Paparo\|first15 = M.\|last16 = Baran\|first16 = A.\|last17 = Charpinet\|first17 = S.\|last18 = Dolez\|first18 = N.\|last19 = Kawaler\|first19 = S.\|last20 = Kurtz\|first20 = D.\|last21 = Moskalik\|first21 = P.\|last22 = Riddle\|first22 = R.\|last23 = Zola\|first23 = S.\|bibcode = 2007Natur.449..189S\|s2cid = 4342338\|url = https://authors.library.caltech.edu/17168/2/Silvotti2007p5743Nature_supp.pdf}}
First extrasolar planet discovered by indirect imaging (visible light) \| Fomalhaut b \| Fomalhaut \| 2008 \| Discovered by a light reflecting off of a dust cloud surrounding the planet.{{cite journal \| last = Kalas \| first = Paul \| author-link = Paul Kalas \|display-authors=etal \| title = Optical Images of an Exosolar Planet 25 Light-Years from Earth \| journal = Science \| volume = 322 \| issue = 5906 \| pages = 1345–8 \| date = 2008-11-13 \| arxiv = 0811.1994 \| doi = 10.1126/science.1166609 \| pmid = 19008414 \|bibcode = 2008Sci...322.1345K \| s2cid = 10054103 }} First planet orbiting an ABO star. In 2020 this object was determined to be an expanding debris cloud from a collision of asteroids rather than a planet.{{cite journal \|last1=Gáspár \|first1=András \|last2=Rieke \|first2=George H. \|title=New HST data and modeling reveal a massive planetesimal collision around Fomalhaut \|date=April 20, 2020 \|journal=PNAS \|volume=117 \|issue=18 \|pages=9712–9722 \|doi=10.1073/pnas.1912506117 \|pmid=32312810 \|pmc=7211925 \|arxiv=2004.08736 \|bibcode=2020PNAS..117.9712G \|s2cid=215827666 \|doi-access=free }}
First extrasolar planet discovered by astrometric observations \| HD 176051 b \| HD 176051 A or HD 176051 B \| 2010 \| Orbits around one of the stars in a binary star system although it is not known which component it is orbiting around.
First exoplanet discovered by orbital perturbations of another planet \| Kepler-19c \| Kepler-19 (KOI-84, TYC 3134-1549-1) \| 2011 \| Detected through transit-timing variation method. Its existence was inferred by the gravitational influence it had on the orbital periodicity of Kepler-19b.TG Daily, [http://www.tgdaily.com/space-features/58356-invisible-planet-detected "'Invisible' planet detected"], Kate Taylor, 9 September 2011Time, [https://web.archive.org/web/20110910010127/http://www.time.com/time/health/article/0,8599,2092448,00.html "Found: A (So Far) Invisible World"], Michael D. Lemonick, 9 September 2011
First exoplanets discovered by orbital phase reflected light variations \| Kepler-70b, Kepler-70c{{cite journal \|title=A compact system of small planets around a former red-giant star \|author=Charpinet, S. and Fontaine, G. and Brassard, P. and Green, EM and Van Grootel, V. and Randall, SK and Silvotti, R. and Baran, AS and Østensen, RH and Kawaler, SD \|journal=Nature \|volume=480 \|issue=7378 \|pages=496–499 \|date=2011 \|publisher=Nature Publishing Group \|doi=10.1038/nature10631 \|display-authors=etal \|pmid=22193103\|bibcode = 2011Natur.480..496C \|s2cid=2213885 }} \| Kepler-70 \| 2011 \| Now dubious.{{citation \| first=J. \| last=Krzesinski \| title=Planetary candidates around the pulsating sdB star KIC 5807616 considered doubtful \| journal=Astronomy & Astrophysics \| volume=581 \| date=August 25, 2015 \| pages=A7 \| doi=10.1051/0004-6361/201526346 \| bibcode=2015A&A...581A...7K \| doi-access=free }}{{citation \| first1=A. \| last1=Blokesz \| first2=J. \| last2=Krzesinski \| first3=L. \| last3=Kedziora-Chudczer \| title=Analysis of putative exoplanetary signatures found in light curves of two sdBV stars observed by Kepler \| journal=Astronomy & Astrophysics \| volume=627 \| date=4 July 2019 \| pages=A86 \| doi=10.1051/0004-6361/201835003 \| arxiv=1906.03321 \| bibcode=2019A&A...627A..86B \| s2cid=182952925 \| doi-access=free }}
First exoplanet discovered by transit-duration variation method \| Kepler-88c \| Kepler-88 (KOI-142) \| 2013 \| Both transit timing variation and transit-duration variation was measured to measure deviations from the regular orbit of Kepler-88b. Deviations of the planet's transit duration and timing helped to discover Kepler-88c.{{Cite journal \|arxiv = 1304.4283\|doi = 10.1088/0004-637X/777/1/3\|title = Koi-142, the King of Transit Variations, is a Pair of Planets Near the 2:1 Resonance\|journal = The Astrophysical Journal\|volume = 777\|issue = 1\|pages = 3\|year = 2013\|last1 = Nesvorný\|first1 = David\|last2 = Kipping\|first2 = David\|last3 = Terrell\|first3 = Dirk\|last4 = Hartman\|first4 = Joel\|last5 = Bakos\|first5 = Gáspár Á.\|last6 = Buchhave\|first6 = Lars A.\|last7 = Stapelfeldt\|first7 = Karl\|last8 = Marois\|first8 = Christian\|last9 = Krist\|first9 = John\|bibcode = 2013ApJ...777....3N\|s2cid = 59933168}}

class="wikitable" border="1" style="text-align:left;"

|+ First discovery by a method

style="background:#efefef;"| Discovery method

! style="background:#efefef;"| Planet

! style="background:#efefef;"| Star

! style="background:#efefef;"| Year

! style="background:#efefef;"| Notes

First planet discovered via pulsar timing

| 1992

| First super-earths.

First planet discovered via radial velocity

| OGLE-2003-BLG-235/MOA-2003-BLG-53#Planetary system

| 1995

| First convincing exoplanet discovered around a Sun-like star. While the minimum mass of HD 114762 b was high enough (11 Jupiter-masses) that it could be a brown dwarf, 51 Peg b's minimum mass meant that it almost certainly was near the mass of Jupiter.

First planet discovered via transit

| OGLE-TR-56 b

| OGLE-TR-56

| 2002

| SpaceDaily.com, [http://www.spacedaily.com/reports/Farthest_Known_Planet_Opens_the_Door_For_Finding_New_Earths.html "Farthest Known Planet Opens the Door For Finding New Earths"], 10 January 2003 (accessed 2010-10-24) This was also the second planet detected through transiting, and the then farthest planet known at time of discovery. The first extrasolar planet detected to be transiting was HD 209458 b, which had already been discovered by the radial velocity method.PhysOrg.com, [http://www.physorg.com/news3475.html "New Era in Planetary Science"], 23 March 2005 (accessed 2010-10-24)

First planet discovered via gravitational lensing

| OGLE-2003-BLG-235/MOA-2003-BLG-53

| 2004

| This was discovered independently by the OGLE and MOA teams.Sky and Telescope, [http://www.skyandtelescope.com/news/3309016.html?page=1&c=y "First Planet Found by Microlensing"], Alan M. MacRobert, 16 April 2004 (accessed 2010-10-24)

First exoplanet discovered by directly imaging the extrasolar planet

|2M1207 b

|2M1207

|2004/

2005

|May be a brown dwarf instead of a planet, depending on formation mechanism and definitions chosen.ESO press releases [https://www.eso.org/public/news/eso0428/] [https://www.eso.org/public/news/eso0515/]

First planet discovered through variable star timing

| V391 Pegasi b

| V391 Pegasi

| 2007

| The planet was discovered by examining deviations from pulsation frequency from a subdwarf star.{{Cite journal |doi = 10.1038/nature06143|pmid = 17851517|title = A giant planet orbiting the 'extreme horizontal branch' star V 391 Pegasi|journal = Nature|volume = 449|issue = 7159|pages = 189–191|year = 2007|last1 = Silvotti|first1 = R.|last2 = Schuh|first2 = S.|last3 = Janulis|first3 = R.|last4 = Solheim|first4 = J.-E.|last5 = Bernabei|first5 = S.|last6 = Østensen|first6 = R.|last7 = Oswalt|first7 = T. D.|last8 = Bruni|first8 = I.|last9 = Gualandi|first9 = R.|last10 = Bonanno|first10 = A.|last11 = Vauclair|first11 = G.|last12 = Reed|first12 = M.|last13 = Chen|first13 = C.-W.|last14 = Leibowitz|first14 = E.|last15 = Paparo|first15 = M.|last16 = Baran|first16 = A.|last17 = Charpinet|first17 = S.|last18 = Dolez|first18 = N.|last19 = Kawaler|first19 = S.|last20 = Kurtz|first20 = D.|last21 = Moskalik|first21 = P.|last22 = Riddle|first22 = R.|last23 = Zola|first23 = S.|bibcode = 2007Natur.449..189S|s2cid = 4342338|url = https://authors.library.caltech.edu/17168/2/Silvotti2007p5743Nature_supp.pdf}}

First extrasolar planet discovered by indirect imaging (visible light)

| Fomalhaut b

| Fomalhaut

| 2008

| Discovered by a light reflecting off of a dust cloud surrounding the planet.{{cite journal

| last = Kalas | first = Paul

| author-link = Paul Kalas

|display-authors=etal

| title = Optical Images of an Exosolar Planet 25 Light-Years from Earth

| journal = Science

| volume = 322 | issue = 5906 | pages = 1345–8

| date = 2008-11-13

| arxiv = 0811.1994

| doi = 10.1126/science.1166609

| pmid = 19008414

|bibcode = 2008Sci...322.1345K | s2cid = 10054103

}} First planet orbiting an ABO star. In 2020 this object was determined to be an expanding debris cloud from a collision of asteroids rather than a planet.{{cite journal |last1=Gáspár |first1=András |last2=Rieke |first2=George H. |title=New HST data and modeling reveal a massive planetesimal collision around Fomalhaut |date=April 20, 2020 |journal=PNAS |volume=117 |issue=18 |pages=9712–9722 |doi=10.1073/pnas.1912506117 |pmid=32312810 |pmc=7211925 |arxiv=2004.08736 |bibcode=2020PNAS..117.9712G |s2cid=215827666 |doi-access=free }}

First extrasolar planet discovered by astrometric observations

| HD 176051 b

| HD 176051 A or HD 176051 B

| 2010

| Orbits around one of the stars in a binary star system although it is not known which component it is orbiting around.

First exoplanet discovered by orbital perturbations of another planet

| Kepler-19c

| Kepler-19 (KOI-84, TYC 3134-1549-1)

| 2011

| Detected through transit-timing variation method. Its existence was inferred by the gravitational influence it had on the orbital periodicity of Kepler-19b.TG Daily, [http://www.tgdaily.com/space-features/58356-invisible-planet-detected "'Invisible' planet detected"], Kate Taylor, 9 September 2011Time, [https://web.archive.org/web/20110910010127/http://www.time.com/time/health/article/0,8599,2092448,00.html "Found: A (So Far) Invisible World"], Michael D. Lemonick, 9 September 2011

First exoplanets discovered by orbital phase reflected light variations

| Kepler-70b, Kepler-70c{{cite journal |title=A compact system of small planets around a former red-giant star

|author=Charpinet, S. and Fontaine, G. and Brassard, P. and Green, EM and Van Grootel, V. and Randall, SK and Silvotti, R. and Baran, AS and Østensen, RH and Kawaler, SD

|journal=Nature

|volume=480

|issue=7378

|pages=496–499

|date=2011

|publisher=Nature Publishing Group

|doi=10.1038/nature10631

|display-authors=etal

|pmid=22193103|bibcode = 2011Natur.480..496C |s2cid=2213885

}}

| Kepler-70

| 2011

| Now dubious.{{citation | first=J. | last=Krzesinski | title=Planetary candidates around the pulsating sdB star KIC 5807616 considered doubtful | journal=Astronomy & Astrophysics | volume=581 | date=August 25, 2015 | pages=A7 | doi=10.1051/0004-6361/201526346 | bibcode=2015A&A...581A...7K | doi-access=free }}{{citation | first1=A. | last1=Blokesz | first2=J. | last2=Krzesinski | first3=L. | last3=Kedziora-Chudczer |

title=Analysis of putative exoplanetary signatures found in light curves of two sdBV stars observed by Kepler | journal=Astronomy & Astrophysics | volume=627 | date=4 July 2019 | pages=A86 | doi=10.1051/0004-6361/201835003 | arxiv=1906.03321 | bibcode=2019A&A...627A..86B | s2cid=182952925 | doi-access=free }}

First exoplanet discovered by transit-duration variation method

| Kepler-88c

| Kepler-88 (KOI-142)

| 2013

| Both transit timing variation and transit-duration variation was measured to measure deviations from the regular orbit of Kepler-88b. Deviations of the planet's transit duration and timing helped to discover Kepler-88c.{{Cite journal |arxiv = 1304.4283|doi = 10.1088/0004-637X/777/1/3|title = Koi-142, the King of Transit Variations, is a Pair of Planets Near the 2:1 Resonance|journal = The Astrophysical Journal|volume = 777|issue = 1|pages = 3|year = 2013|last1 = Nesvorný|first1 = David|last2 = Kipping|first2 = David|last3 = Terrell|first3 = Dirk|last4 = Hartman|first4 = Joel|last5 = Bakos|first5 = Gáspár Á.|last6 = Buchhave|first6 = Lars A.|last7 = Stapelfeldt|first7 = Karl|last8 = Marois|first8 = Christian|last9 = Krist|first9 = John|bibcode = 2013ApJ...777....3N|s2cid = 59933168}}

By detection method

Some of these planets had already been discovered by another method but were the first to be detected by the listed method.

class="wikitable" border="1" style="text-align:left;" \|+ First detection by a method
style="background:#efefef;"\| Detection method ! style="background:#efefef;"\| Planet ! style="background:#efefef;"\| Star ! style="background:#efefef;"\| Year ! style="background:#efefef;"\| Notes
First planet detected via radial velocity \| Gamma Cephei Ab \| Gamma Cephei \| 1988 \| First evidence for exoplanet to receive later confirmation.
First planet detected via pulsar timing \| PSR B1257+12 B PSR B1257+12 C \| PSR B1257+12 \| 1992 \|
First planet detected by transit method \| HD 209458 b \| HD 209458 \| 1999 \| This first exoplanet found to be transiting had already been discovered by the radial velocity method. This is also the first planet that has been detected through more than one method.
First directly imaged extrasolar planet (infrared) \| 2M1207 b \| 2M1207 \| 2004/ 2005 \| May be a sub-brown dwarf instead of a planet, depending on formation mechanism and definitions chosen. If it is a planet, it is the first known planet around a brown dwarf.
First directly imaged extrasolar planet orbiting a 'normal' star (infrared) \| DH Tauri b \| DH Tauri \| 2005 \| Revised masses place it below the deuterium-burning limit.Mass was revised to about 11.5 Jupiter masses in 2006. [http://adsabs.harvard.edu/abs/2006ApJ...649..894L] [https://exoplanet.eu/catalog/dh_tau_b--832/] [http://simbad.u-strasbg.fr/simbad/sim-id?Ident=DH%20Tau%20B] May be a brown dwarf companion.{{Cite journal \|last1=Itoh \|first1=Yoichi \|last2=Hayashi \|first2=Masahiko \|last3=Tamura \|first3=Motohide \|last4=Tsuji \|first4=Takashi \|last5=Oasa \|first5=Yumiko \|last6=Fukagawa \|first6=Misato \|last7=Hayashi \|first7=Saeko S. \|last8=Naoi \|first8=Takahiro \|last9=Ishii \|first9=Miki \|last10=Mayama \|first10=Satoshi \|last11=Morino \|first11=Jun-ichi \|last12=Yamashita \|first12=Takuya \|last13=Pyo \|first13=Tae-Soo \|last14=Nishikawa \|first14=Takayuki \|last15=Usuda \|first15=Tomonori \|date=2005-02-20 \|title=A Young Brown Dwarf Companion to DH Tauri \|url=https://iopscience.iop.org/article/10.1086/427086 \|journal=The Astrophysical Journal \|language=en \|volume=620 \|issue=2 \|pages=984–993 \|arxiv=astro-ph/0411177 \|bibcode=2005ApJ...620..984I \|doi=10.1086/427086 \|issn=0004-637X}} DH Tauri b and GQ Lupi b were confirmed as companions within about three month in 2005. Both could be brown dwarfs. If one is a planet, it is the first planet orbiting a 'normal' star, possibly the first exoplanet directly imaged.
First directly imaged extrasolar planet orbiting a sun-like star (infrared) \| AB Pictoris b \| AB Pictoris \| 2005 \| {{Cite journal \|last1=Chauvin \|first1=G. \|last2=Lagrange \|first2=A.-M. \|last3=Zuckerman \|first3=B. \|last4=Dumas \|first4=C. \|last5=Mouillet \|first5=D. \|last6=Song \|first6=I. \|last7=Beuzit \|first7=J.-L. \|last8=Lowrance \|first8=P. \|last9=Bessell \|first9=M. S. \|date=2005-08-01 \|title=A companion to AB Pic at the planet/brown dwarf boundary \|url=http://www.aanda.org/10.1051/0004-6361:200500111 \|journal=Astronomy & Astrophysics \|volume=438 \|issue=3 \|pages=L29–L32 \|arxiv=astro-ph/0504658 \|bibcode=2005A&A...438L..29C \|doi=10.1051/0004-6361:200500111 \|issn=0004-6361}} It has {{Val\|10\|1}} M_J.{{Cite journal \|last1=Palma-Bifani \|first1=P. \|last2=Chauvin \|first2=G. \|last3=Bonnefoy \|first3=M. \|last4=Rojo \|first4=P. M. \|last5=Petrus \|first5=S. \|last6=Rodet \|first6=L. \|last7=Langlois \|first7=M. \|last8=Allard \|first8=F. \|last9=Charnay \|first9=B. \|last10=Desgrange \|first10=C. \|last11=Homeier \|first11=D. \|last12=Lagrange \|first12=A.-M. \|last13=Beuzit \|first13=J.-L. \|last14=Baudoz \|first14=P. \|last15=Boccaletti \|first15=A. \|date=2023-02-01 \|title=Peering into the young planetary system AB Pic: Atmosphere, orbit, obliquity, and second planetary candidate \|url=https://www.aanda.org/10.1051/0004-6361/202244294 \|journal=Astronomy & Astrophysics \|volume=670 \|pages=A90 \|arxiv=2211.01474 \|bibcode=2023A&A...670A..90P \|doi=10.1051/0004-6361/202244294 \|issn=0004-6361}} GQ Lupi b was found earlier.{{Cite journal \|last1=Neuhäuser \|first1=R. \|last2=Guenther \|first2=E. W. \|last3=Wuchterl \|first3=G. \|last4=Mugrauer \|first4=M. \|last5=Bedalov \|first5=A. \|last6=Hauschildt \|first6=P. H. \|date=2005-05-01 \|title=Evidence for a co-moving sub-stellar companion of GQ Lup \|url=http://www.aanda.org/10.1051/0004-6361:200500104 \|journal=Astronomy & Astrophysics \|volume=435 \|issue=1 \|pages=L13–L16 \|arxiv=astro-ph/0503691 \|bibcode=2005A&A...435L..13N \|doi=10.1051/0004-6361:200500104 \|issn=0004-6361}} May, however, be a brown dwarf companion. 1RXS J160929.1−210524 b was found later.[http://news.bbc.co.uk/2/hi/science/nature/7617031.stm Exoplanet 'circles normal star'], BBC News Online, September 15, 2008 Revised mass places it at or above the deuterium-burning limit. May be a sub-brown dwarf instead of a planet, depending on formation mechanism and definitions chosen. The orbital status of the companion was confirmed in 2010.{{Cite journal \|last1=Lafrenière \|first1=David \|last2=Jayawardhana \|first2=Ray \|last3=van Kerkwijk \|first3=Marten H. \|date=2010-08-10 \|title=THE DIRECTLY IMAGED PLANET AROUND THE YOUNG SOLAR ANALOG 1RXS J160929.1 – 210524: CONFIRMATION OF COMMON PROPER MOTION, TEMPERATURE, AND MASS \|url=https://iopscience.iop.org/article/10.1088/0004-637X/719/1/497 \|journal=The Astrophysical Journal \|volume=719 \|issue=1 \|pages=497–504 \|arxiv=1006.3070 \|bibcode=2010ApJ...719..497L \|doi=10.1088/0004-637X/719/1/497 \|issn=0004-637X}}
First planet with observed secondary eclipse (infrared) \| HD 209458 b \| HD 209458 \| 2005 \| Planet was discovered in 1999. This is the first detection of light from an object with a clear planetary origin.{{Cite journal \|last1=Deming \|first1=Drake \|last2=Seager \|first2=Sara \|last3=Richardson \|first3=L. Jeremy \|last4=Harrington \|first4=Joseph \|date=2005-03-23 \|title=Infrared radiation from an extrasolar planet \|url=https://www.nature.com/articles/nature03507 \|journal=Nature \|language=en \|volume=434 \|issue=7034 \|pages=740–743 \|arxiv=astro-ph/0503554 \|bibcode=2005Natur.434..740D \|doi=10.1038/nature03507 \|pmid=15785769 \|issn=0028-0836}}
First planet characterized by atmospheric spectroscopy \|HD 209458 b \|HD 209458 \|2007 \|{{Cite journal \|last1=Richardson \|first1=L. Jeremy \|last2=Deming \|first2=Drake \|last3=Horning \|first3=Karen \|last4=Seager \|first4=Sara \|last5=Harrington \|first5=Joseph \|date=2007-02-01 \|title=A spectrum of an extrasolar planet \|url=https://www.nature.com/articles/nature05636 \|journal=Nature \|language=en \|volume=445 \|issue=7130 \|pages=892–895 \|arxiv=astro-ph/0702507 \|bibcode=2007Natur.445..892R \|doi=10.1038/nature05636 \|pmid=17314975 \|issn=0028-0836}} also by {{Cite journal \|last1=Swain \|first1=M. R. \|last2=Bouwman \|first2=J. \|last3=Akeson \|first3=R. L. \|last4=Lawler \|first4=S. \|last5=Beichman \|first5=C. A. \|date=2008-02-10 \|title=The Mid-Infrared Spectrum of the Transiting Exoplanet HD 209458b \|url=https://iopscience.iop.org/article/10.1086/523832 \|journal=The Astrophysical Journal \|language=en \|volume=674 \|issue=1 \|pages=482–497 \|arxiv=astro-ph/0702593 \|bibcode=2008ApJ...674..482S \|doi=10.1086/523832 \|issn=0004-637X}} HD 189733 b was characterized spectroscopically only few month later.{{Cite journal \|last1=Grillmair \|first1=C. J. \|last2=Charbonneau \|first2=D. \|last3=Burrows \|first3=A. \|last4=Armus \|first4=L. \|last5=Stauffer \|first5=J. \|last6=Meadows \|first6=V. \|last7=Van Cleve \|first7=J. \|last8=Levine \|first8=D. \|date=2007-04-01 \|title=A Spitzer Spectrum of the Exoplanet HD 189733b \|url=https://iopscience.iop.org/article/10.1086/513741 \|journal=The Astrophysical Journal \|language=en \|volume=658 \|issue=2 \|pages=L115–L118 \|arxiv=astro-ph/0702494 \|bibcode=2007ApJ...658L.115G \|doi=10.1086/513741 \|issn=0004-637X}} Any of the earlier Direct imaging exoplanets, e.g. 2M1207 b, DH Tauri b or GQ Lupi b have spatially resolved spectroscopic observations, but the objects need confirmation to be of planetary origin.
First planets directly characterized through astrometric observations \| Gliese 876 b and Gliese 876 c \| Gliese 876 \| 2009 \|
First planet detected by orbital phase reflected light variations in visible light \| CoRoT-1b{{cite journal\|title=The changing phases of extrasolar planet CoRoT-1b\|journal=Nature\|volume= 459\|issue=7246\|pages=543–545\|date=2009-05-28\|pmid=19478779\|doi=10.1038/nature08045\|author1=Ignas A. G. Snellen\|author2=Ernst J. W. de Mooij\|author3=Simon Albrecht\|bibcode = 2009Natur.459..543S \|arxiv = 0904.1208 \|s2cid=4347612}} \| CoRoT-1 \| 2009 \| The planet in question had already been discovered with transit method.
First planet characterized by spatially resolved atmospheric spectroscopy \|HR 8799 c \|HR 8799 \|2010 \|{{Cite web \|date=13 January 2010 \|title=VLT Captures First Direct Spectrum of an Exoplanet \|url=https://www.eso.org/public/news/eso1002/ \|access-date=26 July 2024 \|website=The European Southern Observatory (ESO)}}{{Cite journal \|last1=Janson \|first1=M. \|last2=Bergfors \|first2=C. \|last3=Goto \|first3=M. \|last4=Brandner \|first4=W. \|last5=Lafrenière \|first5=D. \|date=2010-02-10 \|title=SPATIALLY RESOLVED SPECTROSCOPY OF THE EXOPLANET HR 8799 c \|url=https://iopscience.iop.org/article/10.1088/2041-8205/710/1/L35 \|journal=The Astrophysical Journal \|volume=710 \|issue=1 \|pages=L35–L38 \|arxiv=1001.2017 \|bibcode=2010ApJ...710L..35J \|doi=10.1088/2041-8205/710/1/L35 \|issn=2041-8205}} Several spectra of Direct imaging exoplanets might be earlier, but the objects need confirmation to be of planetary origin. Especially AB Pictoris b is a candidate, if its mass is confirmed to be {{Val\|10\|1}} M_J.
First planets detected through ellipsoidal light variations of the host star \| HAT-P-7b \| HAT-P-7 \| 2010 \| {{Cite journal \|last1=Welsh \|first1=William F. \|last2=Orosz \|first2=Jerome A. \|last3=Seager \|first3=Sara \|last4=Fortney \|first4=Jonathan J. \|last5=Jenkins \|first5=Jon \|last6=Rowe \|first6=Jason F. \|last7=Koch \|first7=David \|last8=Borucki \|first8=William J. \|date=2010-04-20 \|title=THE DISCOVERY OF ELLIPSOIDAL VARIATIONS IN THE KEPLER LIGHT CURVE OF HAT-P-7 \|url=https://iopscience.iop.org/article/10.1088/2041-8205/713/2/L145 \|journal=The Astrophysical Journal \|volume=713 \|issue=2 \|pages=L145–L149 \|arxiv=1001.0413 \|bibcode=2010ApJ...713L.145W \|doi=10.1088/2041-8205/713/2/L145 \|issn=2041-8205}}
First planets detected through transit timing variation method \| Kepler-9b, Kepler-9c \| Kepler-9 \| 2010 \| Transit-timing variation was used to confirm both planets detected through transit method.{{Cite web\|url=http://www.nasa.gov/centers/ames/news/releases/2010/10-73AR.html\|title = NASA's Kepler Mission Discovers Two Planets Transiting the Same Star\|date = 20 November 2015}}
First planet detected through transit duration variation method \| Kepler-16b{{Cite journal \|last1=Doyle \|first1=Laurance R. \|last2=Carter \|first2=Joshua A. \|last3=Fabrycky \|first3=Daniel C. \|last4=Slawson \|first4=Robert W. \|last5=Howell \|first5=Steve B. \|last6=Winn \|first6=Joshua N. \|last7=Orosz \|first7=Jerome A. \|last8=Prˇsa \|first8=Andrej \|last9=Welsh \|first9=William F. \|last10=Quinn \|first10=Samuel N. \|last11=Latham \|first11=David \|last12=Torres \|first12=Guillermo \|last13=Buchhave \|first13=Lars A. \|last14=Marcy \|first14=Geoffrey W. \|last15=Fortney \|first15=Jonathan J. \|date=2011-09-16 \|title=Kepler-16: A Transiting Circumbinary Planet \|url=https://www.science.org/doi/10.1126/science.1210923 \|journal=Science \|language=en \|volume=333 \|issue=6049 \|pages=1602–1606 \|doi=10.1126/science.1210923 \|pmid=21921192 \|arxiv=1109.3432 \|bibcode=2011Sci...333.1602D \|s2cid=206536332 \|issn=0036-8075}} \| Kepler-16 \| 2011 \| Orbital motion of the three-body system Kepler-16 causes variations of the duration of stellar eclipses and planetary transits.
First planet detected with eclipsing binary timing with well-characterized orbit \| Kepler-16b \| Kepler-16 \| 2011 \| Kepler-16b itself was detected through transit method. There are stars with earlier detections through eclipsing binary timing. However, either those signals have matched with unstable orbits or the exact orbits are not known.{{cite news\|last=Overbye\|first=Dennis\|title=NASA Detects Planet Dancing With a Pair of Stars\|url=https://www.nytimes.com/2011/09/16/science/space/16planet.html\|access-date=16 September 2011\|newspaper=The New York Times\|date=2011-09-15}}
First planet detected by light variations due to relativistic beaming \| TrES-2b \| TrES-2A \| 2012 \| {{cite journal \| arxiv=1210.4592 \| doi=10.1088/0004-637X/761/1/53 \| title=Photometrically derived masses and radii of the planet and star in the TrES-2 system \| date=2012 \| last1=Barclay \| first1=Thomas \| last2=Huber \| first2=Daniel \| last3=Rowe \| first3=Jason F. \| last4=Fortney \| first4=Jonathan J. \| last5=Morley \| first5=Caroline V. \| last6=Quintana \| first6=Elisa V. \| last7=Fabrycky \| first7=Daniel C. \| last8=Barentsen \| first8=Geert \| last9=Bloemen \| first9=Steven \| last10=Christiansen \| first10=Jessie L. \| last11=Demory \| first11=Brice-Olivier \| last12=Fulton \| first12=Benjamin J. \| last13=Jenkins \| first13=Jon M. \| last14=Mullally \| first14=Fergal \| last15=Ragozzine \| first15=Darin \| last16=Seader \| first16=Shaun E. \| last17=Shporer \| first17=Avi \| last18=Tenenbaum \| first18=Peter \| last19=Thompson \| first19=Susan E. \| journal=The Astrophysical Journal \| volume=761 \| issue=1 \| page=53 \| bibcode=2012ApJ...761...53B }}
First tilted multi-planetary system discovered \|Kepler-56b, c and d \|Kepler-56 \|2013 \|{{Cite journal \|last1=Huber \|first1=Daniel \|last2=Carter \|first2=Joshua A. \|last3=Barbieri \|first3=Mauro \|last4=Miglio \|first4=Andrea \|last5=Deck \|first5=Katherine M. \|last6=Fabrycky \|first6=Daniel C. \|last7=Montet \|first7=Benjamin T. \|last8=Buchhave \|first8=Lars A. \|last9=Chaplin \|first9=William J. \|last10=Hekker \|first10=Saskia \|last11=Montalbán \|first11=Josefina \|last12=Sanchis-Ojeda \|first12=Roberto \|last13=Basu \|first13=Sarbani \|last14=Bedding \|first14=Timothy R. \|last15=Campante \|first15=Tiago L. \|date=2013-10-18 \|title=Stellar Spin-Orbit Misalignment in a Multiplanet System \|url=https://www.science.org/doi/10.1126/science.1242066 \|journal=Science \|language=en \|volume=342 \|issue=6156 \|pages=331–334 \|doi=10.1126/science.1242066 \|pmid=24136961 \|arxiv=1310.4503 \|bibcode=2013Sci...342..331H \|s2cid=1056370 \|issn=0036-8075}}
First extrasolar planet detected through polarimetry \| DH Tauri b / GSC 6214-210 b \| DH Tauri / GSC 6214-210 \| 2021 \| "polarization of several tenths of a percent for DH Tau B and GSC 6214-210 B in H-band" ... "unlikely to be caused by interstellar dust." ... "the polarization most likely originates from circumsubstellar disks."{{Cite journal \|last1=van Holstein \|first1=R.G. \|last2=Stolker \|first2=T. \|last3=Jensen-Clem \|first3=R. \|last4=Ginski \|first4=C. \|last5=Milli \|first5=J. \|last6=de Boer \|first6=J. \|last7=Girard \|first7=J.H. \|last8=Wahhaj \|first8=Z. \|last9=Bohn \|first9=A.J. \|last10=Millar-Blanchaer \|first10=M.A. \|last11=Benisty \|first11=M. \|last12=Bonnefoy \|first12=M. \|last13=Chauvin \|first13=G. \|last14=Dominik \|first14=C. \|last15=Hinkley \|first15=S. \|date=2021-03-01 \|title=A survey of the linear polarization of directly imaged exoplanets and brown dwarf companions with SPHERE-IRDIS: First polarimetric detections revealing disks around DH Tau B and GSC 6214-210 B \|url=https://www.aanda.org/10.1051/0004-6361/202039290 \|journal=Astronomy & Astrophysics \|volume=647 \|pages=A21 \|arxiv=2101.04033 \|bibcode=2021A&A...647A..21V \|doi=10.1051/0004-6361/202039290 \|issn=0004-6361}} Both companions may be brown dwarfs or exoplanets. Polarized scattered light was found for HD 189733 b in 2008.{{Cite journal \|last1=Berdyugina \|first1=S. V. \|last2=Berdyugin \|first2=A. V. \|last3=Fluri \|first3=D. M. \|last4=Piirola \|first4=V. \|date=2008-01-20 \|title=First Detection of Polarized Scattered Light from an Exoplanetary Atmosphere \|url=https://iopscience.iop.org/article/10.1086/527320 \|journal=The Astrophysical Journal \|language=en \|volume=673 \|issue=1 \|pages=L83–L86 \|arxiv=0712.0193 \|bibcode=2008ApJ...673L..83B \|doi=10.1086/527320 \|issn=0004-637X}} It could not be confirmed and was disputed by two separate teams.{{Cite journal \|last=Wiktorowicz \|first=Sloane J. \|date=2009-05-10 \|title=NONDETECTION OF POLARIZED, SCATTERED LIGHT FROM THE HD 189733b HOT JUPITER \|url=https://iopscience.iop.org/article/10.1088/0004-637X/696/2/1116 \|journal=The Astrophysical Journal \|volume=696 \|issue=2 \|pages=1116–1124 \|arxiv=0902.0624 \|bibcode=2009ApJ...696.1116W \|doi=10.1088/0004-637X/696/2/1116 \|issn=0004-637X}}{{Cite journal \|last1=Wiktorowicz \|first1=Sloane J. \|last2=Nofi \|first2=Larissa A. \|last3=Jontof-Hutter \|first3=Daniel \|last4=Kopparla \|first4=Pushkar \|last5=Laughlin \|first5=Gregory P. \|last6=Hermis \|first6=Ninos \|last7=Yung \|first7=Yuk L. \|last8=Swain \|first8=Mark R. \|date=2015-10-27 \|title=A GROUND-BASED ALBEDO UPPER LIMIT FOR HD 189733b FROM POLARIMETRY \|url=https://iopscience.iop.org/article/10.1088/0004-637X/813/1/48 \|journal=The Astrophysical Journal \|volume=813 \|issue=1 \|pages=48 \|arxiv=1507.03588 \|bibcode=2015ApJ...813...48W \|doi=10.1088/0004-637X/813/1/48 \|issn=1538-4357}}{{Cite journal \|last1=Bott \|first1=Kimberly \|last2=Bailey \|first2=Jeremy \|last3=Kedziora-Chudczer \|first3=Lucyna \|last4=Cotton \|first4=Daniel V. \|last5=Lucas \|first5=P. W. \|last6=Marshall \|first6=Jonathan P. \|last7=Hough \|first7=J. H. \|date=2016-05-23 \|title=The polarization of HD 189733 \|url=https://academic.oup.com/mnrasl/article/459/1/L109/2589655 \|journal=Monthly Notices of the Royal Astronomical Society: Letters \|language=en \|volume=459 \|issue=1 \|pages=L109–L113 \|arxiv=1603.05745 \|bibcode=2016MNRAS.459L.109B \|doi=10.1093/mnrasl/slw046 \|doi-access=free \|issn=1745-3925}} Possibly a "Saharan dust event over the La Palma observatory in 2008 August". HD 189733 b was discovered in 2005.

class="wikitable" border="1" style="text-align:left;"

|+ First detection by a method

style="background:#efefef;"| Detection method

! style="background:#efefef;"| Planet

! style="background:#efefef;"| Star

! style="background:#efefef;"| Year

! style="background:#efefef;"| Notes

First planet detected via radial velocity

| Gamma Cephei Ab

| Gamma Cephei

| 1988

| First evidence for exoplanet to receive later confirmation.

First planet detected via pulsar timing

| 1992

First planet detected by transit method

| HD 209458 b

| HD 209458

| 1999

| This first exoplanet found to be transiting had already been discovered by the radial velocity method. This is also the first planet that has been detected through more than one method.

First directly imaged extrasolar planet (infrared)

| 2M1207 b

| 2M1207

| 2004/ 2005

| May be a sub-brown dwarf instead of a planet, depending on formation mechanism and definitions chosen. If it is a planet, it is the first known planet around a brown dwarf.

First directly imaged extrasolar planet orbiting a 'normal' star (infrared)

| DH Tauri b

| DH Tauri

| 2005

| Revised masses place it below the deuterium-burning limit.Mass was revised to about 11.5 Jupiter masses in 2006. [http://adsabs.harvard.edu/abs/2006ApJ...649..894L] [https://exoplanet.eu/catalog/dh_tau_b--832/] [http://simbad.u-strasbg.fr/simbad/sim-id?Ident=DH%20Tau%20B] May be a brown dwarf companion.{{Cite journal |last1=Itoh |first1=Yoichi |last2=Hayashi |first2=Masahiko |last3=Tamura |first3=Motohide |last4=Tsuji |first4=Takashi |last5=Oasa |first5=Yumiko |last6=Fukagawa |first6=Misato |last7=Hayashi |first7=Saeko S. |last8=Naoi |first8=Takahiro |last9=Ishii |first9=Miki |last10=Mayama |first10=Satoshi |last11=Morino |first11=Jun-ichi |last12=Yamashita |first12=Takuya |last13=Pyo |first13=Tae-Soo |last14=Nishikawa |first14=Takayuki |last15=Usuda |first15=Tomonori |date=2005-02-20 |title=A Young Brown Dwarf Companion to DH Tauri |url=https://iopscience.iop.org/article/10.1086/427086 |journal=The Astrophysical Journal |language=en |volume=620 |issue=2 |pages=984–993 |arxiv=astro-ph/0411177 |bibcode=2005ApJ...620..984I |doi=10.1086/427086 |issn=0004-637X}}

DH Tauri b and GQ Lupi b were confirmed as companions within about three month in 2005. Both could be brown dwarfs. If one is a planet, it is the first planet orbiting a 'normal' star, possibly the first exoplanet directly imaged.

First directly imaged extrasolar planet orbiting a sun-like star (infrared)

| AB Pictoris b

| AB Pictoris

| 2005

| {{Cite journal |last1=Chauvin |first1=G. |last2=Lagrange |first2=A.-M. |last3=Zuckerman |first3=B. |last4=Dumas |first4=C. |last5=Mouillet |first5=D. |last6=Song |first6=I. |last7=Beuzit |first7=J.-L. |last8=Lowrance |first8=P. |last9=Bessell |first9=M. S. |date=2005-08-01 |title=A companion to AB Pic at the planet/brown dwarf boundary |url=http://www.aanda.org/10.1051/0004-6361:200500111 |journal=Astronomy & Astrophysics |volume=438 |issue=3 |pages=L29–L32 |arxiv=astro-ph/0504658 |bibcode=2005A&A...438L..29C |doi=10.1051/0004-6361:200500111 |issn=0004-6361}} It has {{Val|10|1}} M_J.{{Cite journal |last1=Palma-Bifani |first1=P. |last2=Chauvin |first2=G. |last3=Bonnefoy |first3=M. |last4=Rojo |first4=P. M. |last5=Petrus |first5=S. |last6=Rodet |first6=L. |last7=Langlois |first7=M. |last8=Allard |first8=F. |last9=Charnay |first9=B. |last10=Desgrange |first10=C. |last11=Homeier |first11=D. |last12=Lagrange |first12=A.-M. |last13=Beuzit |first13=J.-L. |last14=Baudoz |first14=P. |last15=Boccaletti |first15=A. |date=2023-02-01 |title=Peering into the young planetary system AB Pic: Atmosphere, orbit, obliquity, and second planetary candidate |url=https://www.aanda.org/10.1051/0004-6361/202244294 |journal=Astronomy & Astrophysics |volume=670 |pages=A90 |arxiv=2211.01474 |bibcode=2023A&A...670A..90P |doi=10.1051/0004-6361/202244294 |issn=0004-6361}}

GQ Lupi b was found earlier.{{Cite journal |last1=Neuhäuser |first1=R. |last2=Guenther |first2=E. W. |last3=Wuchterl |first3=G. |last4=Mugrauer |first4=M. |last5=Bedalov |first5=A. |last6=Hauschildt |first6=P. H. |date=2005-05-01 |title=Evidence for a co-moving sub-stellar companion of GQ Lup |url=http://www.aanda.org/10.1051/0004-6361:200500104 |journal=Astronomy & Astrophysics |volume=435 |issue=1 |pages=L13–L16 |arxiv=astro-ph/0503691 |bibcode=2005A&A...435L..13N |doi=10.1051/0004-6361:200500104 |issn=0004-6361}} May, however, be a brown dwarf companion.

1RXS J160929.1−210524 b was found later.[http://news.bbc.co.uk/2/hi/science/nature/7617031.stm Exoplanet 'circles normal star'], BBC News Online, September 15, 2008 Revised mass places it at or above the deuterium-burning limit. May be a sub-brown dwarf instead of a planet, depending on formation mechanism and definitions chosen. The orbital status of the companion was confirmed in 2010.{{Cite journal |last1=Lafrenière |first1=David |last2=Jayawardhana |first2=Ray |last3=van Kerkwijk |first3=Marten H. |date=2010-08-10 |title=THE DIRECTLY IMAGED PLANET AROUND THE YOUNG SOLAR ANALOG 1RXS J160929.1 – 210524: CONFIRMATION OF COMMON PROPER MOTION, TEMPERATURE, AND MASS |url=https://iopscience.iop.org/article/10.1088/0004-637X/719/1/497 |journal=The Astrophysical Journal |volume=719 |issue=1 |pages=497–504 |arxiv=1006.3070 |bibcode=2010ApJ...719..497L |doi=10.1088/0004-637X/719/1/497 |issn=0004-637X}}

First planet with observed secondary eclipse (infrared)

| HD 209458 b

| HD 209458

| 2005

| Planet was discovered in 1999. This is the first detection of light from an object with a clear planetary origin.{{Cite journal |last1=Deming |first1=Drake |last2=Seager |first2=Sara |last3=Richardson |first3=L. Jeremy |last4=Harrington |first4=Joseph |date=2005-03-23 |title=Infrared radiation from an extrasolar planet |url=https://www.nature.com/articles/nature03507 |journal=Nature |language=en |volume=434 |issue=7034 |pages=740–743 |arxiv=astro-ph/0503554 |bibcode=2005Natur.434..740D |doi=10.1038/nature03507 |pmid=15785769 |issn=0028-0836}}

First planet characterized by atmospheric spectroscopy

|HD 209458 b

|HD 209458

|2007

|{{Cite journal |last1=Richardson |first1=L. Jeremy |last2=Deming |first2=Drake |last3=Horning |first3=Karen |last4=Seager |first4=Sara |last5=Harrington |first5=Joseph |date=2007-02-01 |title=A spectrum of an extrasolar planet |url=https://www.nature.com/articles/nature05636 |journal=Nature |language=en |volume=445 |issue=7130 |pages=892–895 |arxiv=astro-ph/0702507 |bibcode=2007Natur.445..892R |doi=10.1038/nature05636 |pmid=17314975 |issn=0028-0836}} also by {{Cite journal |last1=Swain |first1=M. R. |last2=Bouwman |first2=J. |last3=Akeson |first3=R. L. |last4=Lawler |first4=S. |last5=Beichman |first5=C. A. |date=2008-02-10 |title=The Mid-Infrared Spectrum of the Transiting Exoplanet HD 209458b |url=https://iopscience.iop.org/article/10.1086/523832 |journal=The Astrophysical Journal |language=en |volume=674 |issue=1 |pages=482–497 |arxiv=astro-ph/0702593 |bibcode=2008ApJ...674..482S |doi=10.1086/523832 |issn=0004-637X}} HD 189733 b was characterized spectroscopically only few month later.{{Cite journal |last1=Grillmair |first1=C. J. |last2=Charbonneau |first2=D. |last3=Burrows |first3=A. |last4=Armus |first4=L. |last5=Stauffer |first5=J. |last6=Meadows |first6=V. |last7=Van Cleve |first7=J. |last8=Levine |first8=D. |date=2007-04-01 |title=A Spitzer Spectrum of the Exoplanet HD 189733b |url=https://iopscience.iop.org/article/10.1086/513741 |journal=The Astrophysical Journal |language=en |volume=658 |issue=2 |pages=L115–L118 |arxiv=astro-ph/0702494 |bibcode=2007ApJ...658L.115G |doi=10.1086/513741 |issn=0004-637X}}

Any of the earlier Direct imaging exoplanets, e.g. 2M1207 b, DH Tauri b or GQ Lupi b have spatially resolved spectroscopic observations, but the objects need confirmation to be of planetary origin.

First planets directly characterized through astrometric observations

| Gliese 876 b and Gliese 876 c

| Gliese 876

| 2009

First planet detected by orbital phase reflected light variations in visible light

| CoRoT-1b{{cite journal|title=The changing phases of extrasolar planet CoRoT-1b|journal=Nature|volume= 459|issue=7246|pages=543–545|date=2009-05-28|pmid=19478779|doi=10.1038/nature08045|author1=Ignas A. G. Snellen|author2=Ernst J. W. de Mooij|author3=Simon Albrecht|bibcode = 2009Natur.459..543S |arxiv = 0904.1208 |s2cid=4347612}}

| CoRoT-1

| 2009

| The planet in question had already been discovered with transit method.

First planet characterized by spatially resolved atmospheric spectroscopy

|HR 8799 c

|HR 8799

|2010

|{{Cite web |date=13 January 2010 |title=VLT Captures First Direct Spectrum of an Exoplanet |url=https://www.eso.org/public/news/eso1002/ |access-date=26 July 2024 |website=The European Southern Observatory (ESO)}}{{Cite journal |last1=Janson |first1=M. |last2=Bergfors |first2=C. |last3=Goto |first3=M. |last4=Brandner |first4=W. |last5=Lafrenière |first5=D. |date=2010-02-10 |title=SPATIALLY RESOLVED SPECTROSCOPY OF THE EXOPLANET HR 8799 c |url=https://iopscience.iop.org/article/10.1088/2041-8205/710/1/L35 |journal=The Astrophysical Journal |volume=710 |issue=1 |pages=L35–L38 |arxiv=1001.2017 |bibcode=2010ApJ...710L..35J |doi=10.1088/2041-8205/710/1/L35 |issn=2041-8205}} Several spectra of Direct imaging exoplanets might be earlier, but the objects need confirmation to be of planetary origin. Especially AB Pictoris b is a candidate, if its mass is confirmed to be {{Val|10|1}} M_J.

First planets detected through ellipsoidal light variations of the host star

| HAT-P-7b

| HAT-P-7

| 2010

| {{Cite journal |last1=Welsh |first1=William F. |last2=Orosz |first2=Jerome A. |last3=Seager |first3=Sara |last4=Fortney |first4=Jonathan J. |last5=Jenkins |first5=Jon |last6=Rowe |first6=Jason F. |last7=Koch |first7=David |last8=Borucki |first8=William J. |date=2010-04-20 |title=THE DISCOVERY OF ELLIPSOIDAL VARIATIONS IN THE KEPLER LIGHT CURVE OF HAT-P-7 |url=https://iopscience.iop.org/article/10.1088/2041-8205/713/2/L145 |journal=The Astrophysical Journal |volume=713 |issue=2 |pages=L145–L149 |arxiv=1001.0413 |bibcode=2010ApJ...713L.145W |doi=10.1088/2041-8205/713/2/L145 |issn=2041-8205}}

First planets detected through transit timing variation method

| Kepler-9b, Kepler-9c

| Kepler-9

| 2010

| Transit-timing variation was used to confirm both planets detected through transit method.{{Cite web|url=http://www.nasa.gov/centers/ames/news/releases/2010/10-73AR.html|title = NASA's Kepler Mission Discovers Two Planets Transiting the Same Star|date = 20 November 2015}}

First planet detected through transit duration variation method

| Kepler-16b{{Cite journal |last1=Doyle |first1=Laurance R. |last2=Carter |first2=Joshua A. |last3=Fabrycky |first3=Daniel C. |last4=Slawson |first4=Robert W. |last5=Howell |first5=Steve B. |last6=Winn |first6=Joshua N. |last7=Orosz |first7=Jerome A. |last8=Prˇsa |first8=Andrej |last9=Welsh |first9=William F. |last10=Quinn |first10=Samuel N. |last11=Latham |first11=David |last12=Torres |first12=Guillermo |last13=Buchhave |first13=Lars A. |last14=Marcy |first14=Geoffrey W. |last15=Fortney |first15=Jonathan J. |date=2011-09-16 |title=Kepler-16: A Transiting Circumbinary Planet |url=https://www.science.org/doi/10.1126/science.1210923 |journal=Science |language=en |volume=333 |issue=6049 |pages=1602–1606 |doi=10.1126/science.1210923 |pmid=21921192 |arxiv=1109.3432 |bibcode=2011Sci...333.1602D |s2cid=206536332 |issn=0036-8075}}

| Kepler-16

| 2011

| Orbital motion of the three-body system Kepler-16 causes variations of the duration of stellar eclipses and planetary transits.

First planet detected with eclipsing binary timing with well-characterized orbit

| Kepler-16b

| Kepler-16

| 2011

| Kepler-16b itself was detected through transit method. There are stars with earlier detections through eclipsing binary timing. However, either those signals have matched with unstable orbits or the exact orbits are not known.{{cite news|last=Overbye|first=Dennis|title=NASA Detects Planet Dancing With a Pair of Stars|url=https://www.nytimes.com/2011/09/16/science/space/16planet.html|access-date=16 September 2011|newspaper=The New York Times|date=2011-09-15}}

First planet detected by light variations due to relativistic beaming

| TrES-2b

| TrES-2A

| 2012

| {{cite journal | arxiv=1210.4592 | doi=10.1088/0004-637X/761/1/53 | title=Photometrically derived masses and radii of the planet and star in the TrES-2 system | date=2012 | last1=Barclay | first1=Thomas | last2=Huber | first2=Daniel | last3=Rowe | first3=Jason F. | last4=Fortney | first4=Jonathan J. | last5=Morley | first5=Caroline V. | last6=Quintana | first6=Elisa V. | last7=Fabrycky | first7=Daniel C. | last8=Barentsen | first8=Geert | last9=Bloemen | first9=Steven | last10=Christiansen | first10=Jessie L. | last11=Demory | first11=Brice-Olivier | last12=Fulton | first12=Benjamin J. | last13=Jenkins | first13=Jon M. | last14=Mullally | first14=Fergal | last15=Ragozzine | first15=Darin | last16=Seader | first16=Shaun E. | last17=Shporer | first17=Avi | last18=Tenenbaum | first18=Peter | last19=Thompson | first19=Susan E. | journal=The Astrophysical Journal | volume=761 | issue=1 | page=53 | bibcode=2012ApJ...761...53B }}

First tilted multi-planetary system discovered

|Kepler-56b, c and d

|Kepler-56

|2013

|{{Cite journal |last1=Huber |first1=Daniel |last2=Carter |first2=Joshua A. |last3=Barbieri |first3=Mauro |last4=Miglio |first4=Andrea |last5=Deck |first5=Katherine M. |last6=Fabrycky |first6=Daniel C. |last7=Montet |first7=Benjamin T. |last8=Buchhave |first8=Lars A. |last9=Chaplin |first9=William J. |last10=Hekker |first10=Saskia |last11=Montalbán |first11=Josefina |last12=Sanchis-Ojeda |first12=Roberto |last13=Basu |first13=Sarbani |last14=Bedding |first14=Timothy R. |last15=Campante |first15=Tiago L. |date=2013-10-18 |title=Stellar Spin-Orbit Misalignment in a Multiplanet System |url=https://www.science.org/doi/10.1126/science.1242066 |journal=Science |language=en |volume=342 |issue=6156 |pages=331–334 |doi=10.1126/science.1242066 |pmid=24136961 |arxiv=1310.4503 |bibcode=2013Sci...342..331H |s2cid=1056370 |issn=0036-8075}}

First extrasolar planet detected through polarimetry

| DH Tauri b /

GSC 6214-210 b

| DH Tauri /

GSC 6214-210

| 2021

| "polarization of several tenths of a percent for DH Tau B and GSC 6214-210 B in H-band" ... "unlikely to be caused by interstellar dust." ... "the polarization most likely originates from circumsubstellar disks."{{Cite journal |last1=van Holstein |first1=R.G. |last2=Stolker |first2=T. |last3=Jensen-Clem |first3=R. |last4=Ginski |first4=C. |last5=Milli |first5=J. |last6=de Boer |first6=J. |last7=Girard |first7=J.H. |last8=Wahhaj |first8=Z. |last9=Bohn |first9=A.J. |last10=Millar-Blanchaer |first10=M.A. |last11=Benisty |first11=M. |last12=Bonnefoy |first12=M. |last13=Chauvin |first13=G. |last14=Dominik |first14=C. |last15=Hinkley |first15=S. |date=2021-03-01 |title=A survey of the linear polarization of directly imaged exoplanets and brown dwarf companions with SPHERE-IRDIS: First polarimetric detections revealing disks around DH Tau B and GSC 6214-210 B |url=https://www.aanda.org/10.1051/0004-6361/202039290 |journal=Astronomy & Astrophysics |volume=647 |pages=A21 |arxiv=2101.04033 |bibcode=2021A&A...647A..21V |doi=10.1051/0004-6361/202039290 |issn=0004-6361}} Both companions may be brown dwarfs or exoplanets.

Polarized scattered light was found for HD 189733 b in 2008.{{Cite journal |last1=Berdyugina |first1=S. V. |last2=Berdyugin |first2=A. V. |last3=Fluri |first3=D. M. |last4=Piirola |first4=V. |date=2008-01-20 |title=First Detection of Polarized Scattered Light from an Exoplanetary Atmosphere |url=https://iopscience.iop.org/article/10.1086/527320 |journal=The Astrophysical Journal |language=en |volume=673 |issue=1 |pages=L83–L86 |arxiv=0712.0193 |bibcode=2008ApJ...673L..83B |doi=10.1086/527320 |issn=0004-637X}} It could not be confirmed and was disputed by two separate teams.{{Cite journal |last=Wiktorowicz |first=Sloane J. |date=2009-05-10 |title=NONDETECTION OF POLARIZED, SCATTERED LIGHT FROM THE HD 189733b HOT JUPITER |url=https://iopscience.iop.org/article/10.1088/0004-637X/696/2/1116 |journal=The Astrophysical Journal |volume=696 |issue=2 |pages=1116–1124 |arxiv=0902.0624 |bibcode=2009ApJ...696.1116W |doi=10.1088/0004-637X/696/2/1116 |issn=0004-637X}}{{Cite journal |last1=Wiktorowicz |first1=Sloane J. |last2=Nofi |first2=Larissa A. |last3=Jontof-Hutter |first3=Daniel |last4=Kopparla |first4=Pushkar |last5=Laughlin |first5=Gregory P. |last6=Hermis |first6=Ninos |last7=Yung |first7=Yuk L. |last8=Swain |first8=Mark R. |date=2015-10-27 |title=A GROUND-BASED ALBEDO UPPER LIMIT FOR HD 189733b FROM POLARIMETRY |url=https://iopscience.iop.org/article/10.1088/0004-637X/813/1/48 |journal=The Astrophysical Journal |volume=813 |issue=1 |pages=48 |arxiv=1507.03588 |bibcode=2015ApJ...813...48W |doi=10.1088/0004-637X/813/1/48 |issn=1538-4357}}{{Cite journal |last1=Bott |first1=Kimberly |last2=Bailey |first2=Jeremy |last3=Kedziora-Chudczer |first3=Lucyna |last4=Cotton |first4=Daniel V. |last5=Lucas |first5=P. W. |last6=Marshall |first6=Jonathan P. |last7=Hough |first7=J. H. |date=2016-05-23 |title=The polarization of HD 189733 |url=https://academic.oup.com/mnrasl/article/459/1/L109/2589655 |journal=Monthly Notices of the Royal Astronomical Society: Letters |language=en |volume=459 |issue=1 |pages=L109–L113 |arxiv=1603.05745 |bibcode=2016MNRAS.459L.109B |doi=10.1093/mnrasl/slw046 |doi-access=free |issn=1745-3925}} Possibly a "Saharan dust event over the La Palma observatory in 2008 August". HD 189733 b was discovered in 2005.

By system type

class="wikitable" border="1" style="text-align:left;" \|+ First discovery by system type
style="background:#efefef;"\| System type ! style="background:#efefef;"\| Planet ! style="background:#efefef;"\| Star ! style="background:#efefef;"\| Year ! style="background:#efefef;"\| Notes
First extrasolar planet discovered in a solitary star system \| PSR B1257+12 B PSR B1257+12 C \| PSR B1257+12 \| 1992 \| First extrasolar planets discovered.Space.com, [http://www.space.com/scienceastronomy/extrasolar-planet-types-100214.html "Out There: A Strange Zoo of Other Worlds"], Charles Q. Choi, 14 February 2010 (accessed 2010-10-20)
First multiple planet extrasolar system discovered \| PSR B1257+12 A PSR B1257+12 B PSR B1257+12 C \| PSR B1257+12 \| 1992 \| First pulsar planetary system.
First planet discovered in a circumbinary orbit \| PSR B1620-26 b \| PSR B1620-26 \| 1993 \| Orbits a pulsar and a white dwarf. Discovery confirmed in 2003.
First planet discovered in globular cluster \| PSR B1620-26 b \| PSR B1620-26 \| 1993 \| Located in Messier 4.
First planet discovered in a multiple main-sequence star system \| 55 Cancri b \| 55 Cancri \| 1996 \| 55 Cnc has a distant red dwarf companion. The planet around Gamma Cephei was already suspected in 1988, although its existence was not confirmed until 2002 Gamma Cephei Ab is the first relatively close binary with a planet.
First "free-floating" planet discoveredFree-floating objects are not usually considered planets \| S Ori 68 \| {{n/a}} \| 2000 \| ~5 M_Jupiter{{Cite journal \|last1=Zapatero Osorio \|first1=M. R. \|last2=Béjar \|first2=V. J. S. \|last3=Martı́n \|first3=E. L. \|last4=Rebolo \|first4=R. \|last5=Navascués \|first5=D. Barrado y \|last6=Bailer-Jones \|first6=C. A. L. \|last7=Mundt \|first7=R. \|date=2000-10-06 \|title=Discovery of Young, Isolated Planetary Mass Objects in the σ Orionis Star Cluster \|url=https://www.science.org/doi/10.1126/science.290.5489.103 \|journal=Science \|language=en \|volume=290 \|issue=5489 \|pages=103–107 \|bibcode=2000Sci...290..103Z \|doi=10.1126/science.290.5489.103 \|pmid=11021788 \|issn=0036-8075}} Isolated status needs confirmation. Could be a companion of SE 70; needs confimation.{{Cite journal \|last1=Caballero \|first1=J. A. \|last2=Martín \|first2=E. L. \|last3=Dobbie \|first3=P. D. \|last4=Barrado y Navascués \|first4=D. \|date=2006-12-01 \|title=Are isolated planetary-mass objects really isolated?: A brown dwarf-exoplanet system candidate in the σ Orionis cluster \|url=http://www.aanda.org/10.1051/0004-6361:20066162 \|journal=Astronomy & Astrophysics \|volume=460 \|issue=2 \|pages=635–640 \|arxiv=astro-ph/0608659 \|bibcode=2006A&A...460..635C \|doi=10.1051/0004-6361:20066162 \|issn=0004-6361}} {{nowrap\|S Ori J053810.1-023626}} (S Ori 70) has a mass of 3 M_Jupiter; needs confirmation.Space.com, [http://www.space.com/scienceastronomy/astronomy/brown_dwarfs_020522.html "Mysterious Object Might be First Extrasolar Planet Photographed"] {{webarchive\|url=https://web.archive.org/web/20020604023820/http://www.space.com/scienceastronomy/astronomy/brown_dwarfs_020522.html\|date=2002-06-04}}, Robert Roy Britt, 22 May 2002 (accessed 2010-10-24){{Cite journal \|last1=Zapatero Osorio \|first1=M. R. \|last2=Bejar \|first2=V. J. S. \|last3=Martin \|first3=E. L. \|last4=Rebolo \|first4=R. \|last5=Navascues \|first5=D. Barrado y \|last6=Mundt \|first6=R. \|last7=Eisloffel \|first7=J. \|last8=Caballero \|first8=J. A. \|date=2002-10-10 \|title=A Methane, Isolated, Planetary-Mass Object in Orion \|url=https://iopscience.iop.org/article/10.1086/342474 \|journal=The Astrophysical Journal \|language=en \|volume=578 \|issue=1 \|pages=536–542 \|arxiv=astro-ph/0206353 \|bibcode=2002ApJ...578..536Z \|doi=10.1086/342474 \|issn=0004-637X}}
First binary star system where both components have separate planetary systems \| HD 20781 b HD 20781 c HD 20782 b \| HD 20781 HD 20782 \| 2011 \|
First multiple planet system in a multi-star system where multiple planets orbit multiple stars \| Kepler-47b Kepler-47c \| Kepler-47 \| 2012 \| Space.com, [http://www.space.com/17416-tatooine-alien-planet-habitable-zone-life.html "Newfound 'Tatooine' Alien Planet Bodes Well for E.T. Search"], Charles Q. Choi, 4 September 2012 (accessed 5 September 2012)SpaceDaily, [http://www.spacedaily.com/reports/Astronomers_Find_First_Multi_Planet_System_Around_a_Binary_Star_999.html "Astronomers Find First Multi-Planet System Around a Binary Star"], 3 September 2012 (accessed 5 September 2012) NN Serpentis cataclysmic variable is suspected to have at least 2 planets as of 2009.{{Cite journal\|url=http://www.aanda.org/index.php?option=com_article&access=standard&Itemid=129&url=/articles/aa/abs/2010/13/aa15472-10/aa15472-10.html\|doi=10.1051/0004-6361/201015472\|title=Two planets orbiting the recently formed post-common envelope binary NN Serpentis\|year=2010\|last1=Beuermann\|first1=K.\|last2=Hessman\|first2=F. V.\|last3=Dreizler\|first3=S.\|last4=Marsh\|first4=T. R.\|last5=Parsons\|first5=S. G.\|last6=Winget\|first6=D. E.\|last7=Miller\|first7=G. F.\|last8=Schreiber\|first8=M. R.\|last9=Kley\|first9=W.\|last10=Dhillon\|first10=V. S.\|last11=Littlefair\|first11=S. P.\|last12=Copperwheat\|first12=C. M.\|last13=Hermes\|first13=J. J.\|journal=Astronomy and Astrophysics\|volume=521\|pages=L60\|arxiv=1010.3608\|bibcode=2010A&A...521L..60B\|s2cid=53702506}}

class="wikitable" border="1" style="text-align:left;"

|+ First discovery by system type

style="background:#efefef;"| System type

! style="background:#efefef;"| Planet

! style="background:#efefef;"| Star

! style="background:#efefef;"| Year

! style="background:#efefef;"| Notes

First extrasolar planet discovered in a solitary star system

| PSR B1257+12 A
PSR B1257+12 B
PSR B1257+12 C

| 1992

| First extrasolar planets discovered.Space.com, [http://www.space.com/scienceastronomy/extrasolar-planet-types-100214.html "Out There: A Strange Zoo of Other Worlds"], Charles Q. Choi, 14 February 2010 (accessed 2010-10-20)

First multiple planet extrasolar system discovered

| 1992

| First pulsar planetary system.

First planet discovered in a circumbinary orbit

| PSR B1620-26 b

| PSR B1620-26

| 1993

| Orbits a pulsar and a white dwarf. Discovery confirmed in 2003.

First planet discovered in globular cluster

| PSR B1620-26 b

| PSR B1620-26

| 1993

| Located in Messier 4.

First planet discovered in a multiple main-sequence star system

| 55 Cancri b

| 55 Cancri

| 1996

| 55 Cnc has a distant red dwarf companion.

The planet around Gamma Cephei was already suspected in 1988, although its existence was not confirmed until 2002
Gamma Cephei Ab is the first relatively close binary with a planet.

First "free-floating" planet discoveredFree-floating objects are not usually considered planets

| S Ori 68

| {{n/a}}

| 2000

| ~5 M_Jupiter{{Cite journal |last1=Zapatero Osorio |first1=M. R. |last2=Béjar |first2=V. J. S. |last3=Martı́n |first3=E. L. |last4=Rebolo |first4=R. |last5=Navascués |first5=D. Barrado y |last6=Bailer-Jones |first6=C. A. L. |last7=Mundt |first7=R. |date=2000-10-06 |title=Discovery of Young, Isolated Planetary Mass Objects in the σ Orionis Star Cluster |url=https://www.science.org/doi/10.1126/science.290.5489.103 |journal=Science |language=en |volume=290 |issue=5489 |pages=103–107 |bibcode=2000Sci...290..103Z |doi=10.1126/science.290.5489.103 |pmid=11021788 |issn=0036-8075}} Isolated status needs confirmation. Could be a companion of SE 70; needs confimation.{{Cite journal |last1=Caballero |first1=J. A. |last2=Martín |first2=E. L. |last3=Dobbie |first3=P. D. |last4=Barrado y Navascués |first4=D. |date=2006-12-01 |title=Are isolated planetary-mass objects really isolated?: A brown dwarf-exoplanet system candidate in the σ Orionis cluster |url=http://www.aanda.org/10.1051/0004-6361:20066162 |journal=Astronomy & Astrophysics |volume=460 |issue=2 |pages=635–640 |arxiv=astro-ph/0608659 |bibcode=2006A&A...460..635C |doi=10.1051/0004-6361:20066162 |issn=0004-6361}}

{{nowrap|S Ori J053810.1-023626}} (S Ori 70) has a mass of 3 M_Jupiter; needs confirmation.Space.com, [http://www.space.com/scienceastronomy/astronomy/brown_dwarfs_020522.html "Mysterious Object Might be First Extrasolar Planet Photographed"] {{webarchive|url=https://web.archive.org/web/20020604023820/http://www.space.com/scienceastronomy/astronomy/brown_dwarfs_020522.html|date=2002-06-04}}, Robert Roy Britt, 22 May 2002 (accessed 2010-10-24){{Cite journal |last1=Zapatero Osorio |first1=M. R. |last2=Bejar |first2=V. J. S. |last3=Martin |first3=E. L. |last4=Rebolo |first4=R. |last5=Navascues |first5=D. Barrado y |last6=Mundt |first6=R. |last7=Eisloffel |first7=J. |last8=Caballero |first8=J. A. |date=2002-10-10 |title=A Methane, Isolated, Planetary-Mass Object in Orion |url=https://iopscience.iop.org/article/10.1086/342474 |journal=The Astrophysical Journal |language=en |volume=578 |issue=1 |pages=536–542 |arxiv=astro-ph/0206353 |bibcode=2002ApJ...578..536Z |doi=10.1086/342474 |issn=0004-637X}}

First binary star system where both components have separate planetary systems

| HD 20781 b
HD 20781 c
HD 20782 b

| HD 20781
HD 20782

| 2011

First multiple planet system in a multi-star system where multiple planets orbit multiple stars

| Kepler-47b
Kepler-47c

| Kepler-47

| 2012

| Space.com, [http://www.space.com/17416-tatooine-alien-planet-habitable-zone-life.html "Newfound 'Tatooine' Alien Planet Bodes Well for E.T. Search"], Charles Q. Choi, 4 September 2012 (accessed 5 September 2012)SpaceDaily, [http://www.spacedaily.com/reports/Astronomers_Find_First_Multi_Planet_System_Around_a_Binary_Star_999.html "Astronomers Find First Multi-Planet System Around a Binary Star"], 3 September 2012 (accessed 5 September 2012) NN Serpentis cataclysmic variable is suspected to have at least 2 planets as of 2009.{{Cite journal|url=http://www.aanda.org/index.php?option=com_article&access=standard&Itemid=129&url=/articles/aa/abs/2010/13/aa15472-10/aa15472-10.html|doi=10.1051/0004-6361/201015472|title=Two planets orbiting the recently formed post-common envelope binary NN Serpentis|year=2010|last1=Beuermann|first1=K.|last2=Hessman|first2=F. V.|last3=Dreizler|first3=S.|last4=Marsh|first4=T. R.|last5=Parsons|first5=S. G.|last6=Winget|first6=D. E.|last7=Miller|first7=G. F.|last8=Schreiber|first8=M. R.|last9=Kley|first9=W.|last10=Dhillon|first10=V. S.|last11=Littlefair|first11=S. P.|last12=Copperwheat|first12=C. M.|last13=Hermes|first13=J. J.|journal=Astronomy and Astrophysics|volume=521|pages=L60|arxiv=1010.3608|bibcode=2010A&A...521L..60B|s2cid=53702506}}

By star type

class="wikitable" border="1" style="text-align:left;" \|+ First discovery by star type
style="background:#efefef;"\| Star type ! style="background:#efefef;"\| Planet ! style="background:#efefef;"\| Star ! style="background:#efefef;"\| Year ! style="background:#efefef;"\| Notes
First pulsar planet discovered \| PSR B1257+12 B PSR B1257+12 C \| PSR B1257+12 \| 1992 \|
First known planet orbiting a white dwarf. \| PSR B1620-26 b \| PSR B1620-26 \| 1993 \| Orbits a pulsar and a white dwarf. Discovery confirmed in 2003. GD 66 b was announced in 2007, but has not been confirmed.
First known extrasolar planet orbiting a main sequence star (Sun-like) \| 51 Pegasi b \| 51 Pegasi \| 1995 \| First hot Jupiter.
First known planet orbiting a red dwarf \| Gliese 876 b \| Gliese 876 \| 1998 \| {{cite magazine \|journal= Popular Science \|date= September 1998 \|author= Marietta DiChristina \|title= Other Worlds \|pages= 77–79 }}{{cite journal \|bibcode=1998A&A...338L..67D \|last1=Delfosse \|first1=Xavier \|last2=Forveille \|first2=Thierry \|last3=Mayor \|first3=Michel \|last4=Perrier \|first4=Christian \|last5=Naef \|first5=Dominique \|last6=Queloz \|first6=Didier \|title=The closest extrasolar planet. A giant planet around the M4 dwarf GL 876 \|journal=Astronomy and Astrophysics \|volume=338 \|pages=L67–L70 \|year=1998 \|arxiv=astro-ph/9808026 }}
First "free-floating" planet discovered \| S Ori 68 \| {{n/a}} \| 2000 \| ~5 M_Jupiter Isolated status needs confirmation. Could be a companion of SE 70; needs confimation. {{nowrap\|S Ori J053810.1-023626}} (S Ori 70) has a mass of 3 M_Jupiter; needs confirmation.
First known planet orbiting a giant star \| Epsilon Reticuli b \| Epsilon Reticuli A \| 2000 \|
First known planet orbiting a brown dwarf \| 2M1207 b \| 2M1207 \| 2004 \| May in fact be a sub-brown dwarf instead of a planet, depending on formation mechanism and definitions chosen. First directly imaged planet.
First known planet orbiting a pre-main-sequence star \|DH Tauri b \|DH Tauri \|2005 \|Revised masses place it below the deuterium-burning limit. May be a brown dwarf companion.
First known planet orbiting an A star (white star) \| Fomalhaut b \| Fomalhaut \| 2008 \| First extrasolar planet discovered by visible light image. In 2020 this object was determined to be an expanding debris cloud from a collision of asteroids rather than a planet.
First confirmed planet orbiting only a white dwarf \| WD 0806−661 B \| WD 0806−661 \| 2011 \|
First known planet orbiting an B star (blue-white star) \|b Centauri b \|b Centauri \|2021 \|{{Cite journal \|last=Janson \|first=Markus \|last2=Squicciarini \|first2=Vito \|last3=Delorme \|first3=Philippe \|last4=Gratton \|first4=Raffaele \|last5=Bonnefoy \|first5=Mickaël \|last6=Reffert \|first6=Sabine \|last7=Mamajek \|first7=Eric E. \|last8=Eriksson \|first8=Simon C. \|last9=Vigan \|first9=Arthur \|last10=Langlois \|first10=Maud \|last11=Engler \|first11=Natalia \|last12=Chauvin \|first12=Gaël \|last13=Desidera \|first13=Silvano \|last14=Mayer \|first14=Lucio \|last15=Marleau \|first15=Gabriel-Dominique \|date=February 2021 \|title=BEAST begins: sample characteristics and survey performance of the B-star Exoplanet Abundance Study \|url=https://www.aanda.org/10.1051/0004-6361/202039683 \|journal=Astronomy & Astrophysics \|volume=646 \|pages=A164 \|arxiv=2101.02043 \|bibcode=2021A&A...646A.164J \|doi=10.1051/0004-6361/202039683 \|issn=0004-6361}}
First known planet orbiting a hypervelocity star \| MOA-2011-BLG-262Lb \| MOA-2011-BLG-262L \| 2024 \| {{Cite arXiv \|last=Terry \|first=Sean K. \|title=A Candidate High-Velocity Exoplanet System in the Galactic Bulge \|date=2024-10-11 \|arxiv=2410.09147 \|last2=Beaulieu \|first2=Jean-Philippe \|last3=Bennett \|first3=David P. \|last4=Bhattacharya \|first4=Aparna \|last5=Hulberg \|first5=Jon \|last6=Huston \|first6=Macy J. \|last7=Koshimoto \|first7=Naoki \|last8=Blackman \|first8=Joshua W. \|last9=Bond \|first9=Ian A. }}

class="wikitable" border="1" style="text-align:left;"

|+ First discovery by star type

style="background:#efefef;"| Star type

! style="background:#efefef;"| Planet

! style="background:#efefef;"| Star

! style="background:#efefef;"| Year

! style="background:#efefef;"| Notes

First pulsar planet discovered

| 1992

First known planet orbiting a white dwarf.

| PSR B1620-26 b

| PSR B1620-26

| 1993

| Orbits a pulsar and a white dwarf. Discovery confirmed in 2003. GD 66 b was announced in 2007, but has not been confirmed.

First known extrasolar planet orbiting a main sequence star (Sun-like)

| 1995

| First hot Jupiter.

First known planet orbiting a red dwarf

| Gliese 876 b

| Gliese 876

| 1998

| {{cite magazine |journal= Popular Science |date= September 1998 |author= Marietta DiChristina |title= Other Worlds |pages= 77–79 }}{{cite journal |bibcode=1998A&A...338L..67D |last1=Delfosse |first1=Xavier |last2=Forveille |first2=Thierry |last3=Mayor |first3=Michel |last4=Perrier |first4=Christian |last5=Naef |first5=Dominique |last6=Queloz |first6=Didier |title=The closest extrasolar planet. A giant planet around the M4 dwarf GL 876 |journal=Astronomy and Astrophysics |volume=338 |pages=L67–L70 |year=1998 |arxiv=astro-ph/9808026 }}

First "free-floating" planet discovered

| S Ori 68

| {{n/a}}

| 2000

| ~5 M_Jupiter Isolated status needs confirmation. Could be a companion of SE 70; needs confimation.

{{nowrap|S Ori J053810.1-023626}} (S Ori 70) has a mass of 3 M_Jupiter; needs confirmation.

First known planet orbiting a giant star

| Epsilon Reticuli b

| Epsilon Reticuli A

| 2000

First known planet orbiting a brown dwarf

| 2M1207 b

| 2M1207

| 2004

| May in fact be a sub-brown dwarf instead of a planet, depending on formation mechanism and definitions chosen. First directly imaged planet.

First known planet orbiting a pre-main-sequence star

|DH Tauri b

|DH Tauri

|2005

|Revised masses place it below the deuterium-burning limit. May be a brown dwarf companion.

First known planet orbiting an A star (white star)

| Fomalhaut b

| Fomalhaut

| 2008

| First extrasolar planet discovered by visible light image. In 2020 this object was determined to be an expanding debris cloud from a collision of asteroids rather than a planet.

First confirmed planet orbiting only a white dwarf

| WD 0806−661 B

| WD 0806−661

| 2011

First known planet orbiting an B star (blue-white star)

|b Centauri b

|b Centauri

|2021

|{{Cite journal |last=Janson |first=Markus |last2=Squicciarini |first2=Vito |last3=Delorme |first3=Philippe |last4=Gratton |first4=Raffaele |last5=Bonnefoy |first5=Mickaël |last6=Reffert |first6=Sabine |last7=Mamajek |first7=Eric E. |last8=Eriksson |first8=Simon C. |last9=Vigan |first9=Arthur |last10=Langlois |first10=Maud |last11=Engler |first11=Natalia |last12=Chauvin |first12=Gaël |last13=Desidera |first13=Silvano |last14=Mayer |first14=Lucio |last15=Marleau |first15=Gabriel-Dominique |date=February 2021 |title=BEAST begins: sample characteristics and survey performance of the B-star Exoplanet Abundance Study |url=https://www.aanda.org/10.1051/0004-6361/202039683 |journal=Astronomy & Astrophysics |volume=646 |pages=A164 |arxiv=2101.02043 |bibcode=2021A&A...646A.164J |doi=10.1051/0004-6361/202039683 |issn=0004-6361}}

First known planet orbiting a hypervelocity star

| MOA-2011-BLG-262Lb

| MOA-2011-BLG-262L

| 2024

| {{Cite arXiv |last=Terry |first=Sean K. |title=A Candidate High-Velocity Exoplanet System in the Galactic Bulge |date=2024-10-11 |arxiv=2410.09147 |last2=Beaulieu |first2=Jean-Philippe |last3=Bennett |first3=David P. |last4=Bhattacharya |first4=Aparna |last5=Hulberg |first5=Jon |last6=Huston |first6=Macy J. |last7=Koshimoto |first7=Naoki |last8=Blackman |first8=Joshua W. |last9=Bond |first9=Ian A. }}

By planet type

class="wikitable" border="1" style="text-align:left;" \|+ Firsts by planet type
style="background:#efefef;"\| Planet type ! style="background:#efefef;"\| Planet ! style="background:#efefef;"\| Star ! style="background:#efefef;"\| Year ! style="background:#efefef;"\| Notes
First super-Earth discoveredThe mass range of Super-Earths is disputed \| PSR B1257+12 B PSR B1257+12 C \| PSR B1257+12 \| 1992 \| First planets discovered.
First hot Jupiter \| 51 Pegasi b \| 51 Pegasi \| 1995 \| First planet discovered orbiting a main sequence star.
First evaporating planet discovered \| HD 209458 b \| HD 209458 \| 1999 \| First transiting planet.
First free-floating planet discovered \| OTS 44 \| {{n/a}} \| 1998 \|
First extrasolar terrestrial planet orbiting a main sequence star \| 55 Cancri e \| 55 Cancri \| 2004 \| Mu Arae c (discovered in 2004) has been proposed to be a terrestrial planet, but its terrestrial nature is not confirmed, as no radius measurements are available so the density is unknown. The minimum mass is comparable to that of Uranus, which is not a terrestrial planet. The first extrasolar planet found to have a density compatible with being a rocky planet is CoRoT-7b in 2009. 55 Cancri e was found to be a terrestrial planet in 2011.
First super-Earth orbiting a main sequence star \| Gliese 876 d \| Gliese 876 \| 2005 \| Orbits a red dwarf star.
First icy extrasolar planet orbiting a main sequence star \| {{nowrap\|OGLE-2005-BLG-390Lb}} \| {{nowrap\|OGLE-2005-BLG-390L}} \| 2006 \| Orbits a red dwarf star. The icy nature of this planet is not confirmed, as no radius measurements are available so the density is unknown. The first extrasolar planet known to have a density compatible with being an icy planet is GJ 1214 b, though even for this case there are other possibilities for the composition.
First ocean planet candidate; also first small planet within the circumstellar habitable zone \| Gliese 581d \| Gliese 581 \| 2007 \| Orbits a red dwarf star. This planet orbits a little too far from the star, but the greenhouse effect would be enough to make this planet habitable. The other ocean planet candidate, GJ 1214 b, was detected by transit in which the density was calculated and determined that this planet is an ocean planet. Now disputed.{{cite journal \|last1=Robertson \|first1=Paul \|author2-link=Suvrath Mahadevan \|last2=Mahadevan \|first2=Suvrath \|last3=Endl \|first3=Michael \|last4=Roy \|first4=Arpita \|title=Stellar activity masquerading as planets in the habitable zone of the M dwarf Gliese 581 \|journal=Science \|date=3 July 2014 \|doi=10.1126/science.1253253 \|pmid=24993348 \|arxiv=1407.1049 \|bibcode=2014Sci...345..440R \|volume=345 \|issue=6195 \|pages=440–444 \|citeseerx=10.1.1.767.2071 \|s2cid=206556796 }}{{cite journal \|last1=Hatzes \|first1=Artie P. \|title=Periodic Hα variations in GL 581: Further evidence for an activity origin to GL 581d \|journal=Astronomy & Astrophysics \|date=January 2016 \|volume=585 \|pages=A144 \|doi=10.1051/0004-6361/201527135 \|arxiv=1512.00878 \|bibcode=2016A&A...585A.144H \|s2cid=55623630 }}
First Jupiter analogue \| HIP 11915 b \| HIP 11915 \| 2015 \| The discovery raises the possibility that HIP 11915 will be the first Solar System analogue discovered.

class="wikitable" border="1" style="text-align:left;"

|+ Firsts by planet type

style="background:#efefef;"| Planet type

! style="background:#efefef;"| Planet

! style="background:#efefef;"| Star

! style="background:#efefef;"| Year

! style="background:#efefef;"| Notes

First super-Earth discoveredThe mass range of Super-Earths is disputed

| 1992

| First planets discovered.

First hot Jupiter