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Star in the constellation Eridanus
82 G. Eridani (HD 20794, Gliese 139, e Eridani) is a star 19.7 light-years (6.0 parsecs) away from Earth in the constellation Eridanus. It is a main-sequence
82_G._Eridani
Exoplanet orbiting 82 G. Eridani
HD 20794 d (82 G. Eridani d) is an exoplanet, possibly rocky, orbiting the solar-type star 82 G. Eridani. It is at least five times more massive than Earth
HD_20794_d
Triple star system in the constellation Eridanus
40 Eridani is a triple star system in the constellation of Eridanus, abbreviated 40 Eri. It has the Bayer designation Omicron2 Eridani, which is Latinized
40_Eridani
Likelihood of finding extraterrestrial life in yellow dwarf systems
belonging to the habitable zone of yellow dwarfs, such as Kepler-22b, 82 G. Eridani d or Earth, take hundreds of days to complete an orbit around their
Habitability of G-type main-sequence star systems
Habitability_of_G-type_main-sequence_star_systems
Star in the constellation Eridanus
of ε Eridani, γ Eridani, δ Eridani, π Eridani, ζ Eridani, η Eridani, π Ceti, τ1 Eridani, τ2 Eridani, τ3 Eridani, τ4 Eridani, τ5 Eridani, τ6 Eridani, τ7
Epsilon_Eridani
Sebastian; Paulson, Diane B. (November 2006), "The extrasolar planet e Eridani b – orbit and mass", The Astronomical Journal, 132 (5): 2206–2218, arXiv:astro-ph/0610247
List_of_nearest_stars
Star in the constellation of Eridanus
Beta Eridani (β Eridani, abbreviated Beta Eri, β Eri), formally named Cursa /ˈkɜːrsə/, is the second-brightest star in the barely equatorial-southern constellation
Beta_Eridani
main-sequence star B e (82 G.) Eridani (19.7045±0.0093 ly) 3 planets: b, c, d K-type Groombridge 1618 (15.8857±0.0017 ly) Omicron2 (40) Eridani (16.3330±0.0042
Lists_of_stars
F-type main sequence star in the constellation Eridanus
with a likely inner border of 82 astronomical units (AU). A yellow-white main-sequence star of spectral type F0V, 51 Eridani is a member of the Beta Pictoris
51_Eridani
Star in the constellation Camelopardalis
brown dwarfs#Distant future and past encounters). Lists of stars Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications
Gliese_445
up to 50 light-years from the Solar System (64 of them are yellow-orange "G" stars like the Sun). As many as 15% of them could have Earth-sized planets
List of nearest terrestrial exoplanet candidates
List_of_nearest_terrestrial_exoplanet_candidates
Star in the constellation Boötes
.195W. Bruno, G.; Pagano, I.; Scandariato, G.; Florén, H. G.; Brandeker, A.; Olofsson, G.; Maxted, P. F. L.; Fortier, A.; Sousa, S. G.; Sulis, S.; Van
Gliese_526
T-type brown dwarf in the constellation Leo
2MASS 0243-2453 (T6) 2MASS 0415-0935 (T8) 2MASS 0727+1710 (T7) Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications
2MASS_J09373487+2931409
Star in the constellation of Telescopium
H. R. A.; Butler, R. P.; Arriagada, P.; Vogt, S. S.; Burt, J.; Laughlin, G.; Holden, B.; Shectman, S. A.; Crane, J. D.; Thompson, I.; Keiser, S.; Jenkins
Gliese_754
Red dwarf star in the constellation Cetus
Telescopes". Space Telescope Science Institute. Retrieved 28 May 2023. Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications
GJ_1002
Star in the constellation Lupus
2016. Berdiñas, Z. M.; Rodríguez-López, C.; Amado, P. J.; Anglada-Escudé, G.; Barnes, J. R.; MacDonald, J.; Zechmeister, M.; Sarmiento, L. F. (2017),
Gliese_588
Star in the constellation Hercules
S2CID 253264922. Catalogue can be accessed here. Scholz, R.-D.; Bihain, G.; Schnurr, O.; Storm, J. (2011). "Two very nearby (d ~ 5 pc) ultracool brown
WISEPA_J174124.26+255319.5
Star in the constellation Canis Minor
A.; Cortés-Contreras, M.; Montes, D.; Abellán, F. J.; Dorda, R.; Holgado, G.; Zapatero Osorio, M. R.; Morales, J. C.; Amado, P. J.; Passegger, V. M.;
YZ_Canis_Minoris
Nearby red dwarf star in the constellation Orion
planets, and determined a stellar rotation period of 34.4 days. Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications
Gliese_205
Star in the constellation Musca
"Observations of some southern white dwarfs". The Observatory. 82: 68–71. Bibcode:1962Obs....82...68B. Kawaler, S.; Dahlstrom, M. (2000). "White Dwarf Stars"
Gliese_440
Star in the constellation Lacerta
L. L.; Beskin, G. M.; Brazhenko, A. I.; Chalenko, N. N.; Cutispoto, G.; Fuensalida, J. J.; Gershberg, R. E.; Kidger, M. R.; Leto, G.; Malkov, Yu. F.;
EV_Lacertae
Binary star system in the constellation Auriga
Astronomy & Astrophysics. 41: 87–90. Bibcode:1975A&A....41...87P. Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications
Gliese_268
Extrasolar planet in the constellation Grus
inclination and revealing a true mass close to the mass of Jupiter. Epsilon Eridani b Epsilon Indi Ab Bailey, Jeremy; et al. (2008). "A Jupiter-like Planet
Gliese_832_b
Quaternary star system in the constellation Libra
Gliese 570 (or 33 G. Librae) is a quaternary star system approximately 19 light-years away. The primary star is an orange dwarf star (much dimmer and
Gliese_570
Extrasolar planet orbiting Gliese 876
around its primary and that of the primary around its star Pp must be < 1/9, e.g. if a planet takes 90 days to orbit its star, the maximum stable orbit for
Gliese_876_b
Star in the constellation Cancer
EI Cancri, also known as G 9-38 and GJ 1116, is a binary star system consisting of two M-type stars. Located at a distance of 16.7 light-years (5.12 parsecs)
EI_Cancri
Star in the constellation of Eridanus
Upsilon2 Eridani (υ² Eridani, abbreviated Upsilon2 Eri, υ2 Eri), officially named Theemin /ˈθiːmən/, is a star in the constellation of Eridanus. It is
Upsilon2_Eridani
Ultracool dwarf
the atmosphere of LSR J1835+3259. They were found in July 2015 by the Karl G. Jansky Very Large Array in New Mexico by analyzing the emitted radio waves
LSR_J1835+3259
Triple star system in the constellation Cygnus
double star with components G 208-44 and G 208-45, located 15.2 light-years (4.7 parsecs) away in the constellation Cygnus. G 208-44 is itself a closer
GJ_1245
Star in the constellation Gemini
Reiners, A.; Quirrenbach, A.; Amado, P. J.; Aceituno, J.; Anglada-Escudé, G.; Bauer, F. F.; Dreizler, S.; Jeffers, S. V.; Guenther, E. W.; Henning, T
Gliese_251
Binary star system in the constellation Ursa Major
This system had not been studied in X-rays prior to ROSAT. Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications
Gliese_412
Star in the constellation Camelopardalis
2051 is the nearest (red dwarf + white dwarf) separate binary system (40 Eridani BC is located closer at 16.26 light-years, but it is a part of a triple
Stein_2051
Brown dwarf in the constellation Reticulum
also found an effective temperature of 350±25 K and surface gravity of log g=4.0±0.25 for WISE 0350−5658. A mass of 7−9 MJ was estimated in this work.
WISE_0350−5658
Planetary-mass object in the constellation Pisces
detected for SIMP0136. The magnetic flux of SIMP0136 was estimated to be 3.2 kG. In 2025 significant auroral activity was detected on SIMP0136. A re-analysis
SIMP_J013656.5+093347
Star in the constellation Draco
(February 2012), "Stellar Diameters and Temperatures. I. Main-sequence A, F, and G Stars", The Astrophysical Journal, 746 (1): 101, arXiv:1112.3316, Bibcode:2012ApJ
Sigma_Draconis
Variable star in the constellation Eridanus
of γ Eridani, δ Eridani, π Eridani, ε Eridani, ζ Eridani, η Eridani, π Ceti, τ1 Eridani, τ2 Eridani, τ3 Eridani, τ4 Eridani, τ5 Eridani, τ6 Eridani, τ7
Gamma_Eridani
Type of exoplanet larger than Earth
85512 b was found using the HARPS as well as a three super-Earth system 82 G. Eridani. On HD 85512 b, it would be habitable if it exhibits more than 50% cloud
Super-Earth
Brown dwarf in the constellation Triangulum Australe
Y dwarf as of February 2024. WISE 1639−6847 was discovered in 2012 by C. G. Tinney et al. from data, collected by Wide-field Infrared Survey Explorer
WISE_1639−6847
Star in the constellation Ursa Minor
al. (2011), and the other discoveries were published later. Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications
WISE_1506+7027
Star in the constellation Aquarius
John C; Henry, Todd J; Jao, Wei-Chun; Quinn, Samuel N; Winters, Jennifer G; Ianna, Philip A; Koerner, David W; Riedel, Adric R; Subasavage, John P (2014)
Gliese_876
Binary star system in the constellation Cassiopeia
magnitude of 3.44. It has a stellar classification of G0 V, which makes it a G-type main-sequence star like the Sun. It therefore resembles what the Sun
Eta_Cassiopeiae
Star in the constellation Lepus
Gliese 229 Ab and Gliese 229 Ac likely do not exist. Epsilon Indi Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications
Gliese_229
effort). The star Epsilon Eridani was named Ran (after Rán, the Norse goddess of the sea), and the planet Epsilon Eridani b was named AEgir (after Ægir
List_of_nearest_exoplanets
Binary star system in the constellation of Sagittarius
HR 7703 (Gliese 783, 279 G. Sagittarii) is a binary star system in the constellation of Sagittarius. The brighter component has an apparent visual magnitude
HR_7703
Very small red dwarf star in the constellation Aquila
was discovered in 1944 by the astronomer George Van Biesbroeck using the 82-inch (2.1 m) Otto Struve reflector telescope at the McDonald Observatory.
VB_10
Star in the constellation Capricornus
of 10.6±1.7 years, and weak magnetic fields in chromosphere averaging 4.4 G. Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation"
LP_816-60
System of two stars in the constellation Antlia
S2CID 18160586. Smart, R. L.; Tinney, C. G.; Bucciarelli, B.; Marocco, F.; Abbas, U.; Andrei, A.; Bernardi, G.; Burningham, B.; Cardoso, C.; Costa, E.;
2MASS_J09393548−2448279
Star in the constellation Eridanus
constellation Eridanus, about 0.4° to the northwest of the naked eye star Psi Eridani. It is invisible to the naked eye with an apparent visual magnitude 12
GJ_3323
Star in the constellation Scorpius
G.; Baratella, M.; d'Orazi, V.; Affer, L.; Biazzo, K.; Lanza, A. F.; Maggio, A.; González Hernández, J. I.; Perger, M.; Pinamonti, M.; Scandariato, G
Gliese_682
Star in the constellation Pisces
from the original on 11 January 2023. Retrieved 6 January 2022. Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications
Gliese_908
Star in the constellation Ophiuchus
Revisited". Journal of the Royal Astronomical Society of Canada. 82 (3): 140. Bibcode:1988JRASC..82..140H. Berman, Louis (1932). "70 Ophiuchi as a Triple System"
70_Ophiuchi
Triple star system in the constellation Ophiuchus
VizieR. Luck, R. Earle (2017-01-01). "Abundances in the Local Region II: F, G, and K Dwarfs and Subgiants". The Astronomical Journal. 153 (1): 21. arXiv:1611
36_Ophiuchi
Instrument for detecting planets
dwarf. Mayor, M.; Pepe, F.; Queloz, D.; Bouchy, F.; Rupprecht, G.; Lo Curto, G.; Avila, G.; Benz, W.; Bertaux, J.-L.; et al. (2003). "Setting New Standards
High Accuracy Radial Velocity Planet Searcher
High_Accuracy_Radial_Velocity_Planet_Searcher
Star in the constellation Pavo
Tarter of the SETI Institute as the "Best SETI target" among the 100 closest G-type stars. Properties in its favor include a high metallicity, minimal level
Delta_Pavonis
Red dwarf star in the constellation Carina
astrometric variation caused by a planet, could not be eliminated. Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications
LHS_288
arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. de Mello, G. F. Porto; del Peloso, E. F. & Ghezzi, L. (April 2006). "Astrobiologically
List_of_nearest_bright_stars
simply "82 Eri". (See below.) SIMBAD follows this error in its object query result as " * 82 Eri – High proper-motion star". Designated Rho4 Eridani by Johann
List_of_stars_in_Eridanus
Star in the constellation Ursa Major
It is a BY Draconis variable with a surface magnetic field strength of 750 G. The chromosphere is relatively inactive and produces star spots comparable
Groombridge_1618
M type star in the constellation Leo
stars, I - AD Leonis and GX Andromedae". Astrophysical Journal. 251 (12): 571–82. Bibcode:1981ApJ...251..571P. doi:10.1086/159500. Reiners, Ansgar; Basri,
AD_Leonis
Brightest star in the constellation Aquila
of 16.7 light-years (5.1 parsecs) from the Sun. Altair is currently in the G-cloud—a nearby interstellar cloud formed from an accumulation of gas and dust
Altair
Star in the constellation Libra
Peter R.; McLean, Ian S.; Mainzer, Amy K.; Burgasser, Adam J.; Tinney, Chris G.; Parker, Stephen; Salter, Graeme (2012). "Further Defining Spectral Type
WISE_1541−2250
Nearest star in the constellation Orion
period of 1.8 days. The magnetic field strength has been measured as 2.3 kG. It is a source of X-ray emission with a luminosity of 9.5×1027 erg s−1. According
GJ_3379
Brown dwarf star in the constellation Eridanus
W.; Yurchenko, Sergei N.; Tennyson, Jonathan; Leggett, S. K.; Tinney, C. G.; Jones, H. R. A.; Burningham, Ben; Pinfield, D. J.; Smart, R. L. (2015),
2MASS_J04151954−0935066
Star in the constellation Grus
VizieR. Bailey, J.; Butler, R. P.; Tinney, C. G.; Jones, H. R. A.; O'Toole, S.; Carter, B. D.; Marcy, G. W. (2009). "A Jupiter-like Planet Orbiting the
Gliese_832
Brown dwarf star in the constellation Hydra
approximately 18 light-years from Earth. 2MASS 1114−2618 was discovered in 2005 by C. G. Tinney et al. from the 2MASS Wide-Field T Dwarf Search (WFTS), based on observations
2MASS_J11145133−2618235
Star in the constellation Carina
the atmosphere of DENIS J081730.0−615520 is almost dust-free. Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications
DENIS_J081730.0−615520
Gas giant orbiting Gliese 876
main-sequence star B e (82 G.) Eridani (19.7045±0.0093 ly) 3 planets: b, c, d K-type Groombridge 1618 (15.8857±0.0017 ly) Omicron2 (40) Eridani (16.3330±0.0042
Gliese_876_c
Binary star system in the constellation Aquila
Archived from the original on 2018-04-14. Retrieved 2009-05-28. van Biesbroeck, G. (August 1944). "The star of lowest known luminosity". The Astronomical Journal
Gliese_752
Star in the constellation Vela
"just inside" the habitable zone, along with the inner planets of e (or 82 G.) Eridani, and HD 192310 c in Capricornus. These two other systems are closer
HD_85512
Star identification system
rather than Flamsteed numbers, and should be differentiated with a G, as in 82 G. Eridani. Except for a handful of cases, Gould numbers are not in common
Flamsteed_designation
Star in the constellation Eridanus
dwarfs List of brown dwarfs Research Consortium On Nearby Stars Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications
DENIS_0255−4700
Star in the constellation Orion
S2CID 235435757. 40. Antoniadis-Karnavas, A.; Sousa, S. G.; Delgado-Mena, E.; Santos, N. C.; Teixeira, G. D. C.; Neves, V. (2020), "ODUSSEAS: A machine learning
Ross_47
Super-Earth orbiting Gliese 876
main-sequence star B e (82 G.) Eridani (19.7045±0.0093 ly) 3 planets: b, c, d K-type Groombridge 1618 (15.8857±0.0017 ly) Omicron2 (40) Eridani (16.3330±0.0042
Gliese_876_d
Star in the constellation of Lupus
detected. Nu1 Lupi List of extrasolar planets detected by radial velocity 82 G. Eridani Mu Arae Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos
Nu2_Lupi
1G. doi:10.3847/1538-3881/ad89bf. "The Extrasolar Planet Encyclopaedia — 82 Eri d". Encyclopaedia of Exoplanetary Systems. Paris Observatory. Nari, N
List of exoplanets discovered in 2024
List_of_exoplanets_discovered_in_2024
Star system in the constellation Cetus
403.1949K. doi:10.1111/j.1365-2966.2009.16182.x. Benedict, G. F.; Henry, T. J.; Franz, O. G.; McArthur, B. E.; Wasserman, L. H.; Jao, Wei-Chun; Cargile
GJ_1005
Exoplanet orbiting the star Gliese 876
main-sequence star B e (82 G.) Eridani (19.7045±0.0093 ly) 3 planets: b, c, d K-type Groombridge 1618 (15.8857±0.0017 ly) Omicron2 (40) Eridani (16.3330±0.0042
Gliese_876_e
Red dwarf star in the constellation Norma
object, it was concluded that it is not an equal-mass binary. Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications
2MASS_J15404342−5101357
Brightest star in the constellation Eridanus
in the night sky. It has the Bayer designation Alpha Eridani, which is Latinized from α Eridani and abbreviated Alpha Eri or α Eri. The name Achernar
Achernar
"Confirming Fundamental Properties of the Exoplanet Host Star epsilon Eridani Using the Navy Optical Interferometer" (2012, ApJ, 744, 138B)". The Astrophysical
List of nearest stars by spectral type
List_of_nearest_stars_by_spectral_type
Star in the constellation Capricornus
program, along with the now-doubtful HD 85512 b and the planets of 82 G. Eridani. The uncertainty in the mass of the second planet was much higher than
HD_192310
Detecting planets located outside the Solar System
May 2024 scientists discovered Gliese 12 b an Earth size exoplanet. 82 G. Eridani d, an exoplanet orbiting within the habitat zone of its star. 20 Leonis
Discoveries_of_exoplanets
Buchhave, L. A.; Bakos, G. Á.; Hartman, J. D.; Torres, G.; Latham, D. W.; Andersen, J.; Kovács, G.; Noyes, R. W.; Shporer, A.; Esquerdo, G. A.; Fischer, D. A
List of exoplanets discovered in 2011
List_of_exoplanets_discovered_in_2011
Orbits where planets may have liquid surface water
with different luminosities and spectral types are given by r e d g e = ( L / L ⊙ S e d g e ( T e f f ) ) {\displaystyle r_{\mathrm {edge} }={\sqrt {\left({\frac
Habitable_zone
SIMBAD. Retrieved 1 March 2025. "HD 741". SIMBAD. Retrieved 1 March 2025. "G 241-76". SIMBAD. Retrieved 1 March 2025. Portals: Astronomy Stars Gliese catalog
List of Gliese and GJ objects (1-1000)
List_of_Gliese_and_GJ_objects_(1-1000)
Stellar classification
examples include 70 Virginis (G4V) and 82 Eridani (G6V). There are not yet any generally agreed upon G7V and G9V standards. G-type main sequence stars can provide
G-type_main-sequence_star
Binary star system in the constellation Eridanus
Zeta Eridani (ζ Eridani, abbreviated Zeta Eri, ζ Eri) is a binary star in the constellation of Eridanus. With an apparent visual magnitude of 4.80, it
Zeta_Eridani
Type of star identifier
41 G. Arae 145 G. Canis Majoris 23 G. Carinae 72 G. Columbae 35 G. Crucis 39 G. Crucis 82 G. Eridani 33 G. Librae 31 G. Mensae 67 G. Muscae 120 G. Phoenicis
Gould_designation
Star in the constellation Eridanus
Upsilon3 Eridani, Chi Eridani, Phi Eridani, Kappa Eridani, HD 16754, HD 23319, Theta Eridani, HD 24072, HD 24160, Upsilon4 Eridani, Upsilon2 Eridani and Upsilon1
Upsilon3_Eridani
Variable star in the constellation Eridanus
consisting of ο1 Eridani, 39 Eridani, Xi Eridani, Nu Eridani, 56 Eridani and 55 Eridani. Consequently, the Chinese name for Omicron1 Eridani itself is 九州殊口二
Omicron1_Eridani
Star in the constellation Eridanus
Tau2 Eridani, Gamma Eridani, Pi Eridani, Delta Eridani, Epsilon Eridani, Zeta Eridani, Eta Eridani, Pi Ceti, Tau1 Eridani, Tau3 Eridani, Tau4 Eridani, Tau5
Tau2_Eridani
List of stars with high proper motion
(CSN)". IAU Working Group on Star Names. Retrieved 18 July 2026. Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35,495
List of stars with large proper motion
List_of_stars_with_large_proper_motion
Variable star in the constellation Eridanus
Lambda Eridani (λ Eri) is a star in the constellation Eridanus. It is visible to the naked eye on a dark night with an apparent visual magnitude of 4
Lambda_Eridani
Star in the constellation Eridanus
Psi Eridani is a star in the constellation Eridanus. Its name is a Bayer designation that is Latinized from ψ Eridani, and abbreviated Psi Eri or ψ Eri
Psi_Eridani
Stellar classification
include Epsilon Eridani, HD 192310, Gliese 86, and 54 Piscium. K-type main-sequence stars are about three to four times as abundant as G-type main-sequence
K-type_main-sequence_star
Variable star in the constellation Eridanus
Mu Eridani (μ Eridani) is a binary star system in the constellation Eridanus. It is visible to the naked eye with an apparent visual magnitude of 4.00
Mu_Eridani
Star in the constellation Eridanus
χ Eridani (Latinised as Chi Eridani) is a binary star system in the constellation Eridanus. It is visible to the naked eye with an apparent visual magnitude
Chi_Eridani
Red giant star in the constellation Eridanus
Pi Eridani, Latinized from π Eridani, is a star in the constellation Eridanus. It has an apparent visual magnitude of 4.40, which is bright enough to
Pi_Eridani
Star in the constellation Eridanus
Omega Eridani (ω Eri) is a single star in the constellation Eridanus. It is visible to the naked eye with an apparent visual magnitude is 4.37. The distance
Omega_Eridani
Stellar core remnant
Pickering and Williamina Fleming discovered that, despite being a dim star, 40 Eridani B was of spectral type A, or white. This would become known as the first
White_dwarf
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