BD -21°5081
From FenWiki
Revision as of 01:48, 15 May 2010 by Bwebb (Talk | contribs) (Created page with '{{Starbox |name=BD -21°5081 |image= |image_size= |caption= |constellation=Sagittarius |right ascension=18h 38m 53.40s |declination=-21° 03' 06.70" |spectral type=G5 V |distance…')
| BD -21°5081 | |
| Stellar characteristics | |
|---|---|
| Constellation | Sagittarius |
| Right ascension (Epoch J2000) | 18h 38m 53.40s |
| Declination (Epoch J2000) | -21° 03' 06.70" |
| Spectral type | G5 V |
| Distance from Sol | 42.3 ly |
| Other designations | HR 6998, Gl 722, Hip 91438, HD 172051, BD -21°5081, SAO 187086. |
BD -21°5081 is located about 42.3 light-years from Sol. This southern star lies in the western part of the constellation Sagittarius, the Archer. BD -21°5081 is a yellow-orange main sequence dwarf star of spectral and luminosity type G5 V. The star may have a mass similar to that of Sol, 93 percent of its diameter[1], and 65 percent of its luminosity.
For an Earth-type planet around BD -21°5081 to have liquid water at its surface, it would need a stable orbit centered around 0.81 AU -- between the orbital distances of Venus and Earth in the Solar System. Such a planet would have an orbital period less than one Earth year.
(Data from SolStation.com)
Notes
- ↑ (Johnson and Wright, 1983, page 691)
