HIP 30104

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Places in Fenspace
HIP 30104
Stellar characteristics
Right ascension (Epoch J2000)06h 20m 06.10s
Declination (Epoch J2000)-48° 44' 27.90"
Spectral typeG3-4 V
Distance from Sol83.8 ly
Other designationsHR 2290, Hip 30104, HD 44594, CD-48 2259, CP(D)-48 833, SAO 217861, FK5 2486, LTT 2525.
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HIP 30104 is located about 83.8 light-years from Sol. It lies in the southwest corner of the constellation Puppis, the Stern of the legendary ship Argo Navis.

HIP 30104 is a yellow-orange main sequence dwarf star of spectral and luminosity type G3-4 V. Similar to Sol[1][2][3][4], this possible "Solar twin" may have roughly the same mass, the same diameter[5][6], and 1.25 times its luminosity. It appears to be almost 1.55 times as enriched than Sol in elements heavier than hydrogen ("metals") based on its abundance of iron[7]. With low chromospheric activity, the star appears to be much older than Sol's 4.6 billion years[8][9].

An Earth-type planet with liquid water on its surface would require a stable orbit centered around 1.1 AU from HIP 30104 -- just over the orbital distance of Earth in the Solar System. Assuming that the star has about one Solar-mass, such a planet would have an orbital period lasting close to 1.2 Earth years or around 430 days.

(Data from SolStation.com)


  1. (Giusa Cayrel de Strobel, 1996)
  2. (Cayrel de Strobel and Bentolila, 1989)
  3. (Hardorp et al, 1982)
  4. (Cayrel de Strobel, 1981)
  5. (Pasinetti-Fracassini et al, 2001)
  6. (Wesselink et al, 1972)
  7. (B.J. Taylor, 2003)
  8. (Guinan et al, 1999)
  9. (Fernley et al, 1996)