HD 16004
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 02h 35m 27.90113s[1] |
| Declination | +39° 39′ 51.7654″[1] |
| Apparent magnitude (V) | 6.26[2] |
| Characteristics | |
| Spectral type | B9.5III HgMn[2] |
| U−B color index | −0.33[2] |
| B−V color index | −0.30[2] |
| Astrometry | |
| Radial velocity (Rv) | -7.6[3] km/s |
| Proper motion (μ) | RA: 17.47 ± 0.47[1] mas/yr Dec.: -34.02 ± 0.48[1] mas/yr |
| Parallax (π) | 5.05 ± 0.57[1] mas |
| Distance | approx. 650 ly (approx. 200 pc) |
| Absolute magnitude (MV) | −0.36[4] |
| Details | |
| Surface gravity (log g) | 4.15[5] cgs |
| Temperature | 12,150[6] K |
| Rotational velocity (v sin i) | 30[7] km/s |
| Age | 75.3[4] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
HD 16004 is star in the constellation Andromeda. Its apparent magnitude is 6.3. Located approximately 200 parsecs (650 ly) away, it is a B-type star with a surface temperature of around 12,000 K.
References
- 1 2 3 4 5 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.Vizier catalog entry
- 1 2 3 4 Jaschek, M.; Jaschek, C.; Grenier, S.; Gomez, A. E.; Heck, A. (1980). "The absolute magnitude of the Hg-Mn stars". Astronomy and Astrophysics 81: 142. Bibcode:1980A&A....81..142J.
- ↑ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters 32 (11): 759. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
- 1 2 Westin, T. N. G. (1985). "The local system of early type stars - Spatial extent and kinematics". Astronomy and Astrophysics Supplement Series 60: 99–134. Bibcode:1985A&AS...60...99W.
- ↑ Takada, M. (1979). "Surface gravity of Mn-Hg stars". Publications of the Astronomical Society of Japan 31: 473. Bibcode:1979PASJ...31..473T.
- ↑ Glagolevskij, Yu. V. (1994). "A new list of effective temperatures of chemically peculiar stars. II". Bulletin of the Special Astrophysical Observatory 38: 152. Bibcode:1994BSAO...38..152G.
- ↑ Abt, Helmut A.; Levato, Hugo; Grosso, Monica (2002). "Rotational Velocities of B Stars". The Astrophysical Journal 573: 359. Bibcode:2002ApJ...573..359A. doi:10.1086/340590.
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