HD 39901
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| 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 mas[1] |
| 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 |
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.
References
- ^ a b c d e f g h i 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.
- ^ a b c 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, vol. 2, Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.book.....H.
- ^ "HD 39901". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2011-12-20.
