HD 102839 is a class G6Ib (yellow supergiant) star in the constellation Musca. Its apparent magnitude is 4.98 and it is approximately 1,550 light years away from Earth based on parallax.
Quick facts Observation data Epoch J2000 Equinox J2000, Constellation ...
HD 102839
Location of HD 102839 (circled) |
Observation data
Epoch J2000 Equinox J2000 |
| Constellation |
Musca |
| Right ascension |
11h 49m 56.61541s[1] |
| Declination |
−70° 13′ 32.8408″[1] |
| Apparent magnitude (V) |
4.98[2] |
| Characteristics |
| Spectral type |
G6Ib[3] |
| U−B color index |
+1.22[4] |
| B−V color index |
+1.40[4] |
| Astrometry |
|---|
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| Radial velocity (Rv) | +15.90[5] km/s |
| Proper motion (μ) | RA: −8.113[1] mas/yr
Dec.: −0.834[1] mas/yr |
| Parallax (π) | 2.1101±0.1063 mas[1] |
| Distance | 1,550 ± 80 ly
(470 ± 20 pc) |
| Absolute magnitude (MV) | −2.33[2] |
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| Details |
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| Mass | 2.3[6] M☉ |
| Radius | 78[1] R☉ |
| Luminosity | 1,593[2] L☉ |
| Surface gravity (log g) | 0.63[6] cgs |
| Temperature | 4,500[7] K |
| Metallicity [Fe/H] | −0.34[6] dex |
| Rotational velocity (v sin i) | 7.6[8] km/s |
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| Other designations |
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| CPD−69°1595, FK5 2945, GC 16206, GSC 09230-02344, HIP 57696, HR 4538, HD 102839, SAO 251604 |
| Database references |
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| SIMBAD | data |
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