70 Vir, BD+14°2621, GJ 512.1, GJ 9446, HD 117176, HIP 65721, HR 5072, SAO 100582, WDS 13284+1347A[9]
Database references
SIMBAD
data
Exoplanet Archive
data
ARICNS
data
70 Virginis is a binary[10] star located 59[1] light years from the Sun in the equatorial constellation of Virgo, near the northern constellation border with Coma Berenices. 70 Virginis is its Flamsteed designation. The star is visible to the naked eye as a faint, yellow-hued point of light with an apparent visual magnitude of +4.97.[2] It is drifting further away with a heliocentric radial velocity of +4.4 km/s[2] and has a high proper motion, traversing the celestial sphere at the rate of 0.621 arc seconds per annum.[11]
This object has a stellar classification of G4 V-IV,[3] being rather unusually bright for a main sequence star of its type and thus may be just starting to evolve into the subgiant phase. It is an estimated 7.9[7] billion years old and is spinning with a projected rotational velocity of 4.8 km/s.[8] The star has 1.12[5] times the mass of the Sun and 1.9[6] times the Sun's radius. It is radiating 2.92[7] times the luminosity of the Sun from its photosphere at an effective temperature of 5,406 K.[7] The metallicity – a term astronomers use to describe the abundance of elements heavier than helium – is near solar.[7]
In 2011, a star was discovered 2.86 arcseconds away from the primary, and is likely associated with 70 Virginis. Based on its properties, it has a spectral type later than M5V, and has a mass of about 8% that of the Sun.[10] There is also an L-type brown dwarf 42.7 arcseconds away from the primary, but it is unclear whether this is bound to the system.[10]
In 1996, 70 Virginis was discovered to have an extrasolar planet in orbit around it.[12] There is also an orbiting dusty disc with an average temperature of 153 K located at a mean distance of 3.4 AU from the star.[13]
^ abcdeCite error: The named reference Gaia DR3 was invoked but never defined (see the help page).
^ abcdeCite error: The named reference Anderson2012 was invoked but never defined (see the help page).
^ abCite error: The named reference Strassmeier2017 was invoked but never defined (see the help page).
^Holmberg; et al. (2009). "HD 117176". Geneva-Copenhagen Survey of Solar neighbourhood III. Retrieved 2010-02-02.
^ abCite error: The named reference apjss192_1_2 was invoked but never defined (see the help page).
^ abGerard T. van Belle & Kaspar von Braun (2009). "Directly Determined Linear Radii and Effective Temperatures of Exoplanet Host Stars". The Astrophysical Journal. 694 (2): 1085–1098. arXiv:0901.1206. Bibcode:2009ApJ...694.1085V. doi:10.1088/0004-637X/694/2/1085. S2CID 18370219. (web Preprint)
^ abcdefghCite error: The named reference apj771_1_40 was invoked but never defined (see the help page).
^ abCite error: The named reference MartínezArnáiz2010 was invoked but never defined (see the help page).
^Cite error: The named reference Simbad was invoked but never defined (see the help page).
^ abcFontanive, C.; Rice, K.; Bonavita, M.; Lopez, E.; Muzic, K.; Biller, B. (2019). "A high binary fraction for the most massive close-in giant planets and brown dwarf desert members". Monthly Notices of the Royal Astronomical Society. 485 (4): 4967–4996. arXiv:1903.02332. Bibcode:2019MNRAS.485.4967F. doi:10.1093/mnras/stz671.
^Cite error: The named reference Lepine2005 was invoked but never defined (see the help page).
^Cite error: The named reference Marcy1996 was invoked but never defined (see the help page).
^Cite error: The named reference Trilling2008 was invoked but never defined (see the help page).
70Virginis is a binary star located 59 light years from the Sun in the equatorial constellation of Virgo, near the northern constellation border with...
70Virginis b (abbreviated 70 Vir b) is an extrasolar planet approximately 60 light-years away in the constellation of Virgo. Announced in 1996 by Geoffrey...
example, 51 Pegasi b, 61 Virginis b, 70Virginis b etc.), the discoverers of this exoplanet did not use a similar name (i.e. "59 Virginis b") to refer to it...
these planets supporting liquid water. One of the first discoveries was 70Virginis b, a gas giant initially nicknamed "Goldilocks" due to it being neither...
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...
Star systems 47 Ursae Majoris 55 Cancri 70Virginis PSR B1257+12 Tau Boötis Upsilon Andromedae Other articles Lists of exoplanets Solar analog Portal...
the discovery of two additional planets around 47 Ursae Majoris and 70Virginis. Other achievements include discovering the first multiple planet system...
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...
Chi Virginis (χ Vir, χ Virginis) is a double star in the constellation Virgo. Based upon parallax measurements, it is approximately 315 light-years (97...
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...
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...
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...
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...
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...
61 Virginis (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...
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...
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...
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...
signs of extrasolar planets and soon discovered two: Taphao Thong and 70Virginis b. The discovery of Taphao Thong was announced in 1996. 47 Ursae Majoris...
Terrestrial Planet Finder mission. Disrupted planet 14 Herculis 51 Pegasi 70Virginis Lists of exoplanets From L = 4 π R 2 σ T e f f 4 {\displaystyle...
previous year. The celestial bodies that revolve around 16 Cygni and 70Virginis with orbital eccentricities greater than 0.5 were initially regarded...
Global Information