70 Virginis

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{{Starbox begin | name = 70 Virginis }} {{Starbox observe | epoch = J2000.0 | constell = Virgo | ra = Template:RA | dec = Template:DEC | appmag_v = +4.98 }} {{Starbox character | class = G2.5Va | b-v = 0.71 | u-b = 0.26 | variable = none }} {{Starbox astrometry | radial_v = 5 | prop_mo_ra = -234.81 | prop_mo_dec = -576.19 | parallax = 55.22 | p_error = 0.73 | dist_ly = 59.1 | dist_pc = 18.1 | absmag_v = 3.68 }} {{Starbox detail | age = 8200 million | metal = -0.03 [Fe/H] | mass = 1.1 | radius = 1.76 | luminosity = ? | temperature = 5770 | rotation = ? }} {{Starbox catalog | names = HD 117176, HR 5072, BD+14°2621, Gl 512.1, WDS 13284+1347A, and SAO 100582. }} Template:Starbox end

70 Virginis is a yellow dwarf star approximately 59 light-years away in the constellation Virgo. It is rather unusually bright for its spectral type and may be just starting to evolve into the subgiant phase.

As of 1996, 70 Virginis is known to have an extrasolar planet. Also in 1996, Geoffrey Marcy used the then known, and uncertain, parallax of 0.112 to derive a distance from Earth of 8.9 parsecs (29 light years). Template:Clear

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70 Virginis b

{{Planetbox begin | name = 70 Virginis b }} {{Planetbox orbit | semimajor = 0.48 | eccentricity = 0.40 ± 0.01 | period = 116.689 | period_year = | inclination = | long_peri = 358 | t_peri = 2,450,040.26 }} {{Planetbox character | mass = >7.44 | radius = 1.011 | temperature = 477 }} {{Planetbox classification | classification = Hot jovian | type = III }} {{Planetbox discovery | discovery_date = 1996 | discoverers = Marcy, Butler | discovery_method = Doppler Spectroscopy | discovery_status = Confirmed }} Template:Planetbox end

70 Virignis b is an eccentric Jupiter type extrasolar planet which orbits it's sun every 116 days. At the time of discovery, it was believed that the star was only 29 ly away resulting in the star being less luminous based on its apparent magnitude. As a result the planet's orbit was thought to be in the habitable zone and the planet was nicknamed Goldilocks (not too cold or too hot). The Hipparcos satellite later showed that the star was more distant and therefore brighter resulting in the planet being too hot to be in the habitable zone. Template:Clear

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