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GJ 3293

{{Short description|Star in the constellation Eridanus}}

{{Starbox begin}}

{{Starbox observe

| epoch=J2000

| ra= {{RA|04|28|35.71911}}

| dec= {{DEC|-25|10|09.2979}}

| constell=Eridanus

| appmag_v =11.96

}}

{{Starbox character

| class = M2.5

| appmag_1_passband =

| appmag_1 =

| appmag_2_passband =

| appmag_2 =

| appmag_3_passband =

| appmag_3 =

| appmag_4_passband =

| appmag_4 =

| appmag_5_passband =

| appmag_5 =

| r-i =

| v-r =

| b-v =

| u-b =

| variable =

}}

{{Starbox astrometry

| radial_v=13.116 ± 0.0024{{cite journal|bibcode=2018A&A...616A...7S|title=Gaia Data Release 2. The catalogue of radial velocity standard stars|journal=Astronomy and Astrophysics|volume=616|pages=A7|last1=Soubiran|first1=C.|last2=Jasniewicz|first2=G.|last3=Chemin|first3=L.|last4=Zurbach|first4=C.|last5=Brouillet|first5=N.|last6=Panuzzo|first6=P.|last7=Sartoretti|first7=P.|last8=Katz|first8=D.|last9=Le Campion|first9=J. -F.|last10=Marchal|first10=O.|last11=Hestroffer|first11=D.|last12=Thévenin|first12=F.|last13=Crifo|first13=F.|last14=Udry|first14=S.|last15=Cropper|first15=M.|last16=Seabroke|first16=G.|last17=Viala|first17=Y.|last18=Benson|first18=K.|last19=Blomme|first19=R.|last20=Jean-Antoine|first20=A.|last21=Huckle|first21=H.|last22=Smith|first22=M.|last23=Baker|first23=S. G.|last24=Damerdji|first24=Y.|last25=Dolding|first25=C.|last26=Frémat|first26=Y.|last27=Gosset|first27=E.|last28=Guerrier|first28=A.|last29=Guy|first29=L. P.|last30=Haigron|first30=R.|display-authors=29|year=2018|arxiv=1804.09370|doi=10.1051/0004-6361/201832795|s2cid=247759802 }}

| prop_mo_ra = {{val|−81.375}}

| prop_mo_dec = {{val|−485.454}}

| pm_footnote =

| gal_lat=

| gal_lon=

| parallax = 49.4868

| p_error = 0.0227

| parallax_footnote =

| absmag_v=10.66

}}

{{Starbox detail

| mass={{nowrap|0.420}}

| luminosity={{nowrap|0.022}}

| habitable zone={{nowrap|0.85-1.22}}

| temperature={{nowrap|3466 ± 49}}

| metal_fe={{nowrap|0.02 ± 0.09}}

| radius={{nowrap|0.40 ± 0.03}}

| rotational_velocity={{nowrap|−25.9 ± 6.6}}}}

{{Starbox catalog

| names=GJ 3293, LHS 1672, 2MASS J04283571-2510088, Gaia DR2 4893118771316702720}}

{{Starbox reference

| Simbad=GJ+3293

| ARICNS=03369 }}

{{Starbox end}}

GJ 3293 (sometimes Gliese 3293) is a star in the constellation of Eridanus, that is orbited by four planets, two of which (GJ 3293b & GJ 3293d) are located within the star's habitable zone. It is located at the celestial coordinates: Right Ascension {{RA|04|28|35.71911}}, Declination {{DEC|-25|10|09.2979}}. With an apparent visual magnitude of 11.96, this star is too faint to be seen with the naked eye. It can be viewed with a telescope having an aperture of at least {{Convert|4|in|cm|abbr=on}}. The estimated distance to GJ 3293 is {{Convert|65.9|ly|pc|abbr=off|lk=on}}, based on its stellar parallax. GJ 3293 is significantly smaller and cooler than the Sun.

Planetary system

File:Gliese 3293 b hypothetical view.png

In 2015, it was discovered that GJ 3293 possessed two planets, and in 2017 an additional two planets were discovered, making a total of four. Two of these planets are located within the habitable zone: GJ 3293b and GJ 3293d.

{{OrbitboxPlanet begin

| table_ref =

}}

{{OrbitboxPlanet

| exoplanet = e

| mass_earth = {{val|3.28|0.64|p=≥}}

| semimajor = {{val|0.08208|0.00003|0.00004}}

| period = {{val|13.2543|0.0078|0.0104}}

| eccentricity = {{val|0.21|0.20|0.14}}

}}

{{OrbitboxPlanet

| exoplanet = b

| mass_earth = {{val|23.54|0.88|0.89|p=≥}}

| semimajor = {{val|0.14339|0.00003}}

| period = {{val|30.5987|0.0083|0.0084}}

| eccentricity = {{val|0.06|0.04}}

}}

{{OrbitboxPlanet

| exoplanet = d

| mass_earth = {{val|7.60|1.05|p=≥}}

| semimajor = {{val|0.19394|0.00017|0.00018}}

| period = {{val|48.1345|0.0628|0.0661}}

| eccentricity = {{val|0.12|0.13|0.09}}

}}

{{OrbitboxPlanet

| exoplanet = c

| mass_earth = {{val|21.09|1.24|1.26|p=≥}}

| semimajor = {{val|0.36175|0.00048|0.00047}}

| period = {{val|122.6196|0.2429|0.2371}}

| eccentricity = {{val|0.11|0.10|0.08}}

}}

{{Orbitbox end}}

References

{{reflist|refs=

{{Cite Gaia DR3|4893118771316702720}}

{{citation

| title=Gliese 3293

| work=Open Exoplanet Catalogue | publisher=MIT

| url=http://www.openexoplanetcatalogue.com/planet/Gliese%203293%20b/

| access-date=2016-08-11 }}

{{cite journal

| doi=10.1051/0004-6361/201424253

| bibcode=2015A&A...575A.119A

| title=Planetary systems and stellar activity of the M dwarfs GJ 3293, GJ 3341, and GJ 3543

| journal=Astronomy & Astrophysics

| volume=575

| pages=A119

| arxiv=1411.7048v1

| last1=Astudillo-Defru | first1=Nicola

| last2=Bonfils | first2=Xavier

| last3=Delfosse | first3=Xavier

| last4=Ségransan | first4=Damien

| last5=Forveille | first5=Thierry

| last6=Bouchy | first6=François

| last7=Gillon | first7=Michaël

| last8=Lovis | first8=Christophe

| last9=Mayor | first9=Michel

| last10=Neves | first10=Vasco

| last11=Pepe | first11=Francesco

| last12=Perrier | first12=Christian

| last13=Queloz | first13=Didier

| last14=Rojo | first14=Patricio

| last15=Santos | first15=Nuno C.

| last16=Udry | first16=Stéphane

| year=2015

| s2cid=67754095

}}

{{citation

| title=GJ 3293 -- High proper-motion Star| work=SIMBAD

| publisher=Centre de Données astronomiques de Strasbourg

| url=http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=GJ%203293

| access-date=2011-12-08 }}

{{cite journal | doi=10.1051/0004-6361/201630153

| last1=Astudillo-Defru | first1=Nicola | last2=Forveille | first2=Thierry

| last3=Bonfils | first3=Xavier | last4=Ségransan | first4=Damien

| last5=Bouchy | first5=François | last6=Delfosse | first6=Xavier

| last7=Lovis | first7=Christophe | last8=Mayor | first8=Michel

| last9=Murgas | first9=Felipe | last10=Pepe | first10=Francesco

| last11=Santos | first11=Nuno C. | last12=Udry | first12=Stéphane

| last13=Wünsche | first13=Anaël | display-authors=6

| year=2017

| title=The HARPS search for southern extra-solar planets. XLI. A dozen planets around the M dwarfs GJ 3138, GJ 3323, GJ 273, GJ 628, and GJ 3293

| journal=Astronomy and Astrophysics

| volume=602 | at=A88

| arxiv=1703.05386 | bibcode=2017A&A...602A..88A | s2cid=119418595

| url=https://www.aanda.org/articles/aa/full_html/2017/06/aa30153-16/aa30153-16.html

}}

}}

{{Sky|04|28|37.08|-|25|10|25.6}}

{{Stars of Eridanus}}

Category:M-type main-sequence stars

Category:Planetary transit variables

3293

J04283571-2510088

Category:Planetary systems with four confirmed planets

Category:Eridanus (constellation)

{{reddwarf-star-stub}}