HD 16004

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
Distanceapprox. 650 ly
(approx. 200 pc)
Absolute magnitude (MV)−0.36[4]
Details
Surface gravity (log g)4.15[5] cgs
Temperature12,150[6] K
Rotational velocity (v sin i)30[7] km/s
Age75.3[4] Myr
Other designations
HR 746, BD+39° 573, SAO 55680, HIP 12057.
Database references
SIMBADdata
Database references
SIMBADdata

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. 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
  2. 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.
  3. ↑ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
  4. 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.
  5. ↑ Takada, M. (1979). "Surface gravity of Mn-Hg stars". Publications of the Astronomical Society of Japan. 31: 473. Bibcode:1979PASJ...31..473T.
  6. ↑ 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.
  7. ↑ 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.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.