61 Virginis

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 G2V spectral type), located 27.8 light-years (8.5 parsecs) away in the constellation of Virgo.

61 Virginis (G7V) is the first well-established main-sequence star very similar to the Sun with a potential super-Earth,[9] though it was preceded by CoRoT-7 (a borderline orange dwarf).

The designation 61 Virginis originated in the star catalogue of English astronomer John Flamsteed, as part of his Historia Coelestis Britannica.

An 1835 account of Flamsteed's work by English astronomer Francis Baily noted that the star showed a proper motion.

[11] The present day result, obtained with data from the Gaia satellite, gives a parallax of 117.17 mas,[12] which corresponds to a physical separation of 27.8 light-years from the Sun.

[13][8] On 14 December 2009, scientists announced the discovery of three exoplanets with minimum masses between 5 and 25 times that of Earth orbiting 61 Virginis, using the radial velocity method at the Keck and Anglo-Australian Observatories.

[6] An Earth-mass planet in the star's habitable zone (which would still be too small to detect with current technology) remains possible.