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OGLE-TR-56

{{short description|Star in the constellation Sagittarius}}

{{Starbox begin

| name = OGLE-TR-56

}}

{{Starbox image

| image = 250px

| caption = A light curve showing the May 14, 2008 planet transit across OGLE-TR-56. Adapted from Adams et al. (2011)

}}

{{Starbox observe

| epoch = J2000.0

| constell = Sagittarius

| ra = {{RA|17|56|35.51}}

| dec = {{DEC|–29|32|21.2}}

| appmag_v = 16.560<

}}

{{Starbox character

| class = G

| variable=EP{{cite web |publisher=Sternberg Astronomical Institute |title=General Catalogue of Variable Stars Query results |url=http://www.sai.msu.su/groups/cluster/gcvs/cgi-bin/search.cgi?search=+V5157+Sgr+|work=Sternberg Astronomical Institute, Moscow, Russia|access-date=2009-04-30}}

}}

{{Starbox astrometry

| dist_ly = ~5,000

| dist_pc = ~1,500

}}

{{Starbox detail

| mass = 1.17 ± 0.04

| radius = 1.32 ± 0.06

}}

{{Starbox catalog

| names = V5157 Sagittarii, SBC9 2452

}}

{{Starbox reference

| Simbad = OGLE-TR-56

| EPE = OGLE-TR-56

}}

{{Starbox end}}

OGLE-TR-56 is a dim, distant, magnitude 17 Sun-like star located approximately {{convert|1500|pc|abbr=off|lk=on}} away in the constellation of Sagittarius.{{cite web

| url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=OGLE-TR-56

| title =SIMBAD query result: V* V5157 Sgr -- Star showing eclipses by its planet

| publisher=Centre de Données astronomiques de Strasbourg

| access-date=2009-04-30 }}

This star is listed as an eclipsing type variable star with the eclipse due to the passage of the planet as noted in the discovery papers.

Planetary system

In 2002, a possible planet was discovered transiting the star, and after additional observations to rule out false positives, it was confirmed. At the time of discovery it was the shortest-period planet.

{{OrbitboxPlanet begin}}

{{OrbitboxPlanet

| exoplanet = b

| mass = 1.29 ± 0.12

| period = 1.211909 ± 0.000001

| semimajor = 0.0225 ± 0.0004[https://exoplanet.eu/catalog/ogle_tr_56_b--1/ Planet : OGLE-TR-56 b], Extrasolar Planets Encyclopaedia. Accessed on line August 22, 2008.

| eccentricity = 0

}}

{{Orbitbox end}}

See also

References

{{Reflist|refs=

{{cite journal |last1=Adams |first1=E. R. |last2=López-Morales |first2=M. |last3=Elliot |first3=J. L. |last4=Seager |first4=S. |last5=Osip |first5=D. J. |last6=Holman |first6=M. J. |last7=Winn |first7=J. N. |last8=Hoyer |first8=S. |last9=Rojo |first9=P. |title=Twenty-one New Light Curves of OGLE-TR-56b: New System Parameters and Limits on Timing Variations |journal=The Astrophysical Journal |date=November 2011 |volume=741 |issue=2 |pages=102-113 |bibcode=2011ApJ...741..102A |doi=10.1088/0004-637X/741/2/102 |url=https://iopscience.iop.org/article/10.1088/0004-637X/741/2/102/pdf |access-date=11 April 2025|arxiv=1108.4423 }}

{{cite journal | title=High-Resolution Spectroscopic Follow-up of OGLE Planetary Transit Candidates in the Galactic Bulge: Two Possible Jupiter-Mass Planets and Two Blends | last1=Konacki | first1=Maciej | last2=Torres | first2=Guillermo | last3=Sasselov | first3=Dimitar D. | last4=Jha | first4=Saurabh | display-authors=1 | journal=The Astrophysical Journal | volume=597 | issue=2 | pages=1076–1091 | year=2003 | arxiv=astro-ph/0306542 | bibcode=2003ApJ...597.1076K | doi=10.1086/378561 | s2cid=53610157 }}

{{cite journal | title=An extrasolar planet that transits the disk of its parent star | url=https://www.cfa.harvard.edu/~sasselov/exopl/og56.taf | format=PDF | last1=Konacki | first1=Maciej | last2=Torres | first2=Guillermo | last3=Jha | first3=Saurabh | last4=Sasselov | first4=Dimitar D. | display-authors=1 | journal=Nature | volume=421 | issue=6922 | pages=507–509 | year=2003 | bibcode=2003Natur.421..507K | doi=10.1038/nature01379 | pmid=12556885| s2cid=1784939 }}

{{cite journal | title=The "666" collaboration on OGLE transits I. Accurate radius of the planets OGLE-TR-10b and OGLE-TR-56b with VLT deconvolution photometry | last1=Pont | first1=F. | last2=Moutou | first2=C. | last3=Gillon | first3=M. | last4=Udalski | first4=A. | last5=Bouchy | first5=F. | last6=Fernandes | first6=J. M. | last7=Gieren | first7=W. | last8=Mayor | first8=M. | last9=Mazeh | first9=T. | last10=Minniti | first10=D. | last11=Melo | first11=C. | last12=Naef | first12=D. | last13=Pietrzynski | first13=G. | last14=Queloz | first14=D. | last15=Ruiz | first15=M. T. | last16=Santos | first16=N. C. | last17=Udry | first17=S. | display-authors=1 | journal=Astronomy and Astrophysics| volume=465| issue=3 | pages=1069–1074 | year=2007 | arxiv=astro-ph/0610827 | bibcode=2007A&A...465.1069P | doi=10.1051/0004-6361:20066645 | s2cid=115760695 }}

{{cite journal | title=The Optical Gravitational Lensing Experiment. Search for Planetary and Low-Luminosity Object Transits in the Galactic Disk. Results of 2001 Campaign - Supplement | url=http://acta.astrouw.edu.pl/Vol52/n2/a_52_2_1.html | last1=Udalski | first1=A. | last2=Żebruń | first2=K. | last3=Szymański | first3=M. | last4=Kubiak | first4=M. | last5=Soszyński | first5=I. | last6=Szewczyk | first6=O. | last7=Wyrzykowski | first7=L. | last8=Pietrzyński | first8=G. | display-authors=1 | journal=Acta Astronomica | volume=52 | issue=2 | pages=115–128 | year=2002 | arxiv=astro-ph/0207133 | bibcode=2002AcA....52..115U }}

}}

External links

  • {{cite encyclopedia | url=http://exoplanet.eu/star.php?st=OGLE-TR-56 | archive-url=https://web.archive.org/web/20071106060348/http://exoplanet.eu/star.php?st=OGLE-TR-56 | url-status=dead | archive-date=November 6, 2007 | encyclopedia=Extrasolar Planets Encyclopaedia | title=Notes for star OGLE-TR-56 | access-date=2008-08-22}}

{{Sky|17|56|35.51|-|29|32|21.2|4900}}

{{Stars of Sagittarius}}

{{DEFAULTSORT:OGLE-TR-56}}

Category:Planetary systems with one confirmed planet

Category:Planetary transit variables

Category:Sagittarius (constellation)

Category:G-type stars

Sagittarii, V5157

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