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GJ 3293: Difference between revisions

Coordinates: Sky map 04h 28m 37.08s, −25° 10′ 25.6″
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Delfosse et al.
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==Planetary system==
==Planetary system==
On November 15, 2017, it was discovered that Gliese 3293 possessed four planets, two of which were located well within the habitable zone: Gliese 3293b and Gliese 3293d.<ref name="arxiv.org">[https://arxiv.org/abs/1703.05386 "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".] N. Astudillo-Defru, T. Forveille, X. Bonfils, D. Ségransan, F. Bouchy, X. Delfosse, C. Lovis, M. Mayor, F. Murgas, F. Pepe, N. C. Santos, S. Udry, A. Wunsche (March 15, 2017).</ref>
On November 15, 2017, it was discovered that Gliese 3293 possessed four planets, two of which were located well within the habitable zone: Gliese 3293b and Gliese 3293d.<ref name="arxiv.org">{{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&nbsp;dwarfs GJ&nbsp;3138, GJ&nbsp;3323, GJ&nbsp;273, GJ&nbsp;628, and GJ&nbsp;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
}}</ref>


{{OrbitboxPlanet begin
{{OrbitboxPlanet begin
| table_ref = <ref name="arxiv.org" />
| table_ref = <ref name="arxiv.org">[https://arxiv.org/abs/1703.05386 "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".] N. Astudillo-Defru, T. Forveille, X. Bonfils, D. Ségransan, F. Bouchy, X. Delfosse, C. Lovis, M. Mayor, F. Murgas, F. Pepe, N. C. Santos, S. Udry, A. Wunsche (March 15, 2017).</ref>
}}
}}
{{OrbitboxPlanet
{{OrbitboxPlanet
Line 102: Line 116:


<ref name=arxiv>{{cite journal
<ref name=arxiv>{{cite journal
⚫
| doi=10.1051/0004-6361/201424253
| bibcode=2015A&A...575A.119A
| bibcode=2015A&A...575A.119A
| title=Planetary systems and stellar activity of the M dwarfs GJ 3293, GJ 3341, and GJ 3543
| title=Planetary systems and stellar activity of the M dwarfs GJ 3293, GJ 3341, and GJ 3543
Line 107: Line 122:
| volume=575
| volume=575
| pages=A119
| pages=A119
| arxiv=1411.7048v1 | last1=Astudillo-Defru
| arxiv=1411.7048v1
| last1=Astudillo-Defru | first1=Nicola
⚫
| last2=Bonfils | first2=Xavier
| first1=N.
⚫
| last3=Delfosse | first3=Xavier
⚫
| last2=Bonfils
⚫
| last4=Ségransan | first4=Damien
| first2=X.
⚫
| last5=Forveille | first5=Thierry
⚫
| last3=Delfosse
⚫
| last6=Bouchy | first6=François
| first3=X.
⚫
| last7=Gillon | first7=Michaël
⚫
| last4=Ségransan
⚫
| last8=Lovis | first8=Christophe
| first4=D.
⚫
| last9=Mayor | first9=Michel
⚫
| last5=Forveille
| last10=Neves | first10=Vasco <!-- de Matos Ferreira Mendes -->
| first5=T.
⚫
| last11=Pepe | first11=Francesco
⚫
| last6=Bouchy
⚫
| last12=Perrier | first12=Christian
| first6=F.
⚫
| last13=Queloz | first13=Didier
⚫
| last7=Gillon
⚫
| last14=Rojo | first14=Patricio
| first7=M.
⚫
| last15=Santos | first15=Nuno C.
⚫
| last8=Lovis
⚫
| last16=Udry | first16=Stéphane
| first8=C.
⚫
| last9=Mayor
| first9=M.
| last10=Neves
| first10=V.
⚫
| last11=Pepe
| first11=F.
⚫
| last12=Perrier
| first12=C.
⚫
| last13=Queloz
| first13=D.
⚫
| last14=Rojo
| first14=P.
⚫
| last15=Santos
| first15=N. C.
⚫
| last16=Udry
| first16=S.
| year=2015
| year=2015
⚫
| doi=10.1051/0004-6361/201424253
| s2cid=67754095
| s2cid=67754095
}}</ref>
}}</ref>

Revision as of 02:26, 24 September 2021

Gliese 3293
Observation data
Epoch J2000      Equinox J2000
Constellation Eridanus[1]
Right ascension 04h 28m 35.72s
Declination −25° 10′ 08.9″
Apparent magnitude (V) 11.96[2]
Characteristics
Spectral type M2.5[2]
Astrometry
Parallax (π)55 ± 9 mas[1]
Distanceapprox. 59 ly
(approx. 18 pc)
Absolute magnitude (MV)10.66[1]
Details
Mass0.420[1] M☉
Radius0.40 ± 0.03[1] R☉
Luminosity0.022[1] L☉
Temperature3466 ± 49[1] K
Metallicity [Fe/H]0.02 ± 0.09[1] dex
Rotational velocity (v sin i)−25.9 ± 6.6[1] km/s
Other designations
GJ 3293,[2] LHS 1672,[3] 2MASS J04283571-2510088, Gaia DR2 4893118771316702720
Database references
SIMBADdata
ARICNSdata

Gliese 3293 is a star in the constellation of Eridanus, that is orbited by four planets, two of which (Gliese 3293b/Gliese 3293d) are located within the star's habitable zone. It is located at the celestial coordinates: Right Ascension 04h 28m 35.72s, Declination −25° 10′ 08.9″.[1] With an apparent visual magnitude of 11.96,[3] 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 4 in (10 cm). The estimated distance to Gliese 3293 is 59 light-years (18 parsecs).[1] Gliese 3293 is significantly smaller and cooler than the Sun.[1]

Planetary system

On November 15, 2017, it was discovered that Gliese 3293 possessed four planets, two of which were located well within the habitable zone: Gliese 3293b and Gliese 3293d.[4]

The GJ 3293 planetary system[4]
Companion
(in order from star) 		Mass Semimajor axis
(AU) 		Orbital period
(days) 		Eccentricity Inclination Radius
e 3.28±064 M🜨 0.08208 13.2543 0.21 — —
b 23.54 M🜨 0.1434 30.6 0.06±0.04 — —
d 7.60±1.05 M🜨 0.1939 48.14±0.12 0.12 — —
c 21.09 M🜨 0.364 123.98 0.11 — —

References

  1. ^ a b c d e f g h i j k l Astudillo-Defru, Nicola; Bonfils, Xavier; Delfosse, Xavier; Ségransan, Damien; Forveille, Thierry; Bouchy, François; Gillon, Michaël; Lovis, Christophe; Mayor, Michel; Neves, Vasco; Pepe, Francesco; Perrier, Christian; Queloz, Didier; Rojo, Patricio; Santos, Nuno C.; Udry, Stéphane (2015). "Planetary systems and stellar activity of the M dwarfs GJ 3293, GJ 3341, and GJ 3543". Astronomy & Astrophysics. 575: A119. arXiv:1411.7048v1. Bibcode:2015A&A...575A.119A. doi:10.1051/0004-6361/201424253. S2CID 67754095.
  2. ^ a b c "Gliese 3293", Open Exoplanet Catalogue, MIT, retrieved 2016-08-11
  3. ^ a b "GJ 3293 -- High proper-motion Star", SIMBAD, Centre de Données astronomiques de Strasbourg, retrieved 2011-12-08
  4. ^ a b Astudillo-Defru, Nicola; Forveille, Thierry; Bonfils, Xavier; Ségransan, Damien; Bouchy, François; Delfosse, Xavier; et al. (2017). "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". Astronomy and Astrophysics. 602. A88. arXiv:1703.05386. Bibcode:2017A&A...602A..88A. doi:10.1051/0004-6361/201630153. S2CID 119418595.


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