HD 39901
HD 39901 is an orange giant in the constellation of Columba. With an apparent magnitude of 6.561, it is only visible when there is almost no light pollution.
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Colomba |
Right ascension | 05h 53m 22.85122s[1] |
Declination | −42° 55′ 16.7849″[1] |
Apparent magnitude (V) | 6.55[2] |
Characteristics | |
Spectral type | K3III[3] |
B−V color index | 1.370±0.001[2] |
Astrometry | |
Radial velocity (Rv) | −9.54±0.15[1] km/s |
Proper motion (μ) | RA: +5.109[1] mas/yr Dec.: +11.405[1] mas/yr |
Parallax (π) | 5.0507 ± 0.0224[1] mas |
Distance | 646 ± 3 ly (198.0 ± 0.9 pc) |
Absolute magnitude (MV) | −0.03[2] |
Details | |
Radius | 20.80+0.93 −1.99[1] R☉ |
Luminosity | 142.6±1.1[1] L☉ |
Temperature | 4,374+225 −95[1] K |
Other designations | |
Database references | |
SIMBAD | data |
References
- Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015.
- Houk, N. (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, 2, Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.book.....H.
- "HD 39901". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2011-12-20.
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