Artist's impression of 61 Virginis b as a hot super-Earth, with some sporadic volcanic activity.
Discovery
Discovered by
Vogt et al.
Discovery site
Keck Observatory Anglo-Australian Observatory
Discovery date
14 December 2009
Detection method
Radial velocity
Orbital characteristics
Apastron
0.056163 AU
Periastron
0.044239 AU
Semi-major axis
0.050201±0.000005 AU
Eccentricity
0.12±0.11
Orbital period (sidereal)
4.2150±0.0006 d 101.16 h
Average orbital speed
130.01
Time of periastron
2453369.166
Argument of periastron
105±54
Star
61 Virginis
Physical characteristics
Mean radius
~1.6 R🜨
Mass
≥ 5.1 ME
Temperature
1,054 K (781 °C; 1,438 °F)
61 Virginis b (abbreviated 61 Vir b) is an extrasolar planet, orbiting the 5th magnitude G-type star 61 Virginis, in Virgo. This planet has a minimum mass of 5.1 times that of Earth and is an example of a super-Earth planet. It orbits very close to the star, at a distance of 0.050201 AU with an eccentricity of 0.12. This planet was discovered on 14 December 2009 using the radial velocity method taken at Keck and Anglo-Australian Observatories.[1][2]
^Vogt, Steven (2010). "A Super-Earth and two Neptunes Orbiting the Nearby Sun-like star 61 Virginis". The Astrophysical Journal. 708 (2): 1366–1375. arXiv:0912.2599. Bibcode:2010ApJ...708.1366V. doi:10.1088/0004-637X/708/2/1366. S2CID 1979253.
^Tim Stephens (2009-12-14). "New planet discoveries suggest low-mass planets are common around nearby stars". UCSC News. UC Santa Cruz. Archived from the original on 23 December 2009. Retrieved 2009-12-14.
61Virginisb (abbreviated 61 Vir b) is an extrasolar planet, orbiting the 5th magnitude G-type star 61Virginis, in Virgo. This planet has a minimum mass...
61Virginis (abbreviated 61 Vir) is the Flamsteed designation of a G-type main-sequence star (G7V) slightly less massive than the Sun (which has a hotter...
example, 51 Pegasi b, 61Virginisb, 70 Virginisb etc.), the discoverers of this exoplanet did not use a similar name (i.e. "59 Virginisb") to refer to it...
(2010). "A Super-Earth and two Neptunes Orbiting the Nearby Sun-like star 61Virginis". The Astrophysical Journal. 708 (2): 1366–1375. arXiv:0912.2599. Bibcode:2010ApJ...
"Identification of a Constellation from a Position". Retrieved 2006-12-26. Gould, B. A. "Uranometria Argentina". Reprinted and updated by Pilcher, F. Archived...
stars in the night sky. It has the Bayer designation α Virginis, which is Latinised to Alpha Virginis and abbreviated Alpha Vir or α Vir. Analysis of its...
Gamma Virginis (γ Virginis, abbreviated Gamma Vir, γ Vir), officially named Porrima /ˈpɒrɪmə/, is a binary star system in the constellation of Virgo. It...
Kappa Virginis (κ Virginis, abbreviated Kappa Vir, κ Vir), officially named Kang /ˈkæŋ/, is a solitary star in the zodiac constellation of Virgo. It has...
ν Virginis, Latinized as Nu Virginis, is a single star in the zodiac constellation of Virgo, located at the western tip of the classic constellation and...
32 Virginis, also known as FM Virginis, is a star located about 250 light years from the Earth, in the constellation Virgo. Its apparent magnitude ranges...
Xi Virginis (ξ Vir, ξ Virginis) is a solitary star in the zodiac constellation of Virgo. It is bright enough to be seen with the naked eye, having an...
Pi Virginis (π Vir, π Virginis) is a binary star in the zodiac constellation of Virgo. It is visible to the naked eye with an apparent visual magnitude...
Phi Virginis (φ Virginis, abbreviated Phi Vir, φ Vir) is a binary star in the zodiac constellation of Virgo. It can be seen with the naked eye, having...
Upsilon Virginis (υ Vir, υ Virginis) is a single star in the zodiac constellation of Virgo. It has an apparent visual magnitude of 5.25, making it faintly...
Theta Virginis (θ Vir, θ Virginis) is a multiple star system in the zodiac constellation of Virgo. Based upon parallax measurements, it is about 320 light...
Omega Virginis (ω Vir, ω Virginis) is a solitary star in the zodiac constellation Virgo. It has an apparent visual magnitude of +5.2, which is bright...
Lambda Virginis (λ Virginis, abbreviated Lambda Vir, λ Vir) is a binary star system in the zodiac constellation of Virgo. With an apparent visual magnitude...
members. Possible members include Beta Columbae, Pi Mensae, 14 Tauri and 68 Virginis. The space velocities of this group of stars range from 105 to 114 km/s...
CU Virginis is a single star in the equatorial constellation of Virgo. It has an apparent visual magnitude of 4.99, which is bright enough to be faintly...
Tau Virginis (τ Vir, τ Virginis) is a single star in the zodiac constellation Virgo. With an apparent visual magnitude of 4.28, it is faintly visible...
Omicron Virginis (ο Vir, ο Virginis) is a star in the zodiac constellation of Virgo. It is visible to the naked eye with an apparent visual magnitude...
BH Virginis is a binary star system in the equatorial constellation of Virgo. With a typical apparent visual magnitude of 9.6, it is too faint to be visible...
Psi Virginis (ψ Vir, ψ Virginis) is a suspected binary star system in the zodiac constellation of Virgo. It can be seen with the naked eye and has an...
massive exoplanet candidate is HD 217786 b, which masses 12.98 MJ; the least massive confirmed planet is HD 10180 b, which masses 0.004 MJ or 3.1 M🜨. The...
38 Virginis is an F-type main sequence star in the constellation of Virgo. It is around 108 light years distant from the Earth. The name 38 Virginis derives...
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