70 Virginis is a Sun-like star around which has been found a high-mass planet in a very eccentric orbit. The companion of 70 Virginis is the prototype for the eccentric Jovian class of exoplanets. Although this world may lie within the habitable zone of its host star – earning it the nickname "Goldilocks," since its orbital distance is "just right" – two other factors argue against the possibility of it harboring life. First, the planet moves in such an elongated orbit that it must experience severe seasonal variations in climate. Second, being so massive, it almost certainly has an immense, crushing atmosphere. It appears to be similar in nature to the companion of HD 114762.
|distance||59.1 light-years (18.1 parsecs)|
|luminosity (Sun = 1)||2.9|
|mass (Sun = 1)||1.10|
|position||R.A. 13h 28m 25.8s , Dec. +13° 46' 43.6"|
|other designations||HD 117176, HR 5072, BD+14°2621, Gl 512.1, WDS 13284+1347A, SAO 100582|
|mass (Jupiter = 1)||7.49 ± 0.61|
|semimajor axis||0.48 AU (72 million km, 44.6 million miles)|
|orbital period||116.7 days|
|discovery||1996, Marcy, Butler, et al|
|method of discovery||radial velocity|
1. Marcy, G. W., and Butler, R. P. "A Planetary Companion to 70 Virginis," Astrophysical Journal Letters," 464, L147 (1996).