Nu(2) Lupi

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Places in Fenspace
Nu(2) Lupi
Stellar characteristics
Right ascension (Epoch J2000)15h 21m 48.10s
Declination (Epoch J2000)-48° 19' 03.50"
Spectral typeG2-5 V
Distance from Sol47.5 ly
Other designationsNu2 Lup, HR 5699, Gl 582, Hip 75181, HD 136352, CD-47 9919, CP(D)-47 7075, SAO 225697, LHS 395, LTT 6225, LFT 1200, LPM 565.
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Nu(2) Lupi is located about 47.5 light-years from Sol. It lies in the southern part of the constellation Lupus, the Wolf. Nu(2) Lupi is a yellow-orange main sequence dwarf star of spectral and luminosity type G2-5 V. Similar to Sol[1], this "Solar analogue" may have roughly the same mass, around 99 percent of its diameter[2][3], and 97 percent of its luminosity. It appears to be only around 58 percent as enriched than Sol in elements heavier than hydrogen ("metals") based on its abundance of iron[4]

An Earth-type planet with liquid water on its surface would require a stable orbit centered around 0.98 AU from Nu2 Lupi -- just under the orbital distance of Earth in the Solar System. Such a planet would have an orbital period lasting close to an Earth year. However, given its conjectured young age, an Earth-sized planet is not likely to have developed an oxygen-rich atmosphere but is likely to be under heavy bombardment by asteroids and comets.

(Data from


  1. (Giusa Cayrel de Strobel, 1996)
  2. (Pasinetti-Fracassini et al, 2001)
  3. (Johnson and Wright, 1983, page 683)
  4. (B.J. Taylor, 2003)