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|Right ascension (Epoch J2000)||06h 10m 14.47s|
|Declination (Epoch J2000)||-74° 45' 10.96"|
|Spectral type||G5-6 V|
|Distance from Sol||33.1 ± 0.02 ly|
|Other designations||Alp Men, Alf Men, HR 2261, Gl 231, Hip 29271, HD 43834, CP(D)-74 374, SAO 256274, FK5 239, LTT 2490|
Alpha Mensae is a yellow-orange main sequence dwarf star of spectral and luminosity type G5-6 V, with about 87 percent of Sol's mass, 84 to 91 percent of its diameter, and around 80 percent of its luminosity. The star may be as as enriched (102 percent) as Sol with elements heavier than hydrogen ("metallicity"), based on its abundance of iron.
Alpha Mensae is located about 33.1 light-years from Sol. It lies in the northeastern part of the Constellation Mensa, the Table Mountain -- west of Zeta Volantis, southwest of Gamma2 Volantis, and south of the Large Magellanic Cloud.
The orbit of an Earth-like planet (with liquid water) around this star would be centered around 0.91 AU -- between the orbital distances of Venus and Earth in the Solar System -- with an orbital period of nearly 342 days, close to an Earth year.
(Boilerplate from SolStation.com)
- Perrin and Karoji, 1987, page 236; and Johnson and Wright, 1983, page 659
- Cayrel de Strobel et al, 1991, page 285