HD 1606
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Andromeda |
Right ascension | 00h 20m 24.402s[1] |
Declination | +30° 56′ 08.21″[1] |
Apparent magnitude (V) | 5.869[2] |
Characteristics | |
Spectral type | B7V[3] |
U−B color index | −0.45[4] |
B−V color index | −0.10[4] |
Variable type | Suspected[5] |
Astrometry | |
Radial velocity (Rv) | 3.8[6] km/s |
Proper motion (μ) | RA: ±0.37 14.13[1] mas/yr Dec.: ±0.24 −1.05[1] mas/yr |
Parallax (π) | 6.26 ± 0.38[1] mas |
Distance | 520 ± 30 ly (160 ± 10 pc) |
Absolute magnitude (MV) | −0.5[7] |
Details | |
Mass | 3.7[8] M☉ |
Radius | 2.9[9] R☉ |
Surface gravity (log g) | 3.988[8] cgs |
Temperature | 13,186[8] K |
Rotational velocity (v sin i) | 113[8] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 1606 is a star in the constellation Andromeda. Although it is suspected of variability, none has been conclusively found, and its apparent magnitude has not been shown to vary from 5.88.[10] Located around 160 parsecs (520 ly) away, the star is a blue main-sequence star of spectral type B7V,[6] a massive star that is currently fusing its core hydrogen.
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
- ↑ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355. Bibcode:2000A&A...355L..27H.
- ↑ Cowley, A (1972). "Spectral classification of the bright B8 stars". The Astronomical Journal. 77: 750. Bibcode:1972AJ.....77..750C. doi:10.1086/111348.
- 1 2 Hamdy, M. A; Abo Elazm, M. S; Saad, S. M (1993). "A catalogue of spectral classification and photometric data of B-type stars". Astrophysics and Space Science. 203: 53–107. Bibcode:1993Ap&SS.203...53H. doi:10.1007/BF00659414.
- ↑ Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S.
- 1 2 3 "HR 78". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 15 February 2014.
- ↑ Eggen, O. J (1977). "Is star formation bimodal ? II. The nearest early-type stars". Publications of the Astronomical Society of the Pacific. 89: 187. Bibcode:1977PASP...89..187E. doi:10.1086/130099.
- 1 2 3 4 Huang, Wenjin; Gies, D. R; McSwain, M. V (2010). "A Stellar Rotation Census of B Stars: From Zams to Tams". The Astrophysical Journal. 722: 605–619. arXiv:1008.1761. Bibcode:2010ApJ...722..605H. doi:10.1088/0004-637X/722/1/605.
- ↑ Pasinetti Fracassini, L. E; Pastori, L; Covino, S; Pozzi, A (2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition -Comments and statistics". Astronomy and Astrophysics. 367 (2): 521. arXiv:astro-ph/0012289. Bibcode:2001A&A...367..521P. doi:10.1051/0004-6361:20000451.
- ↑ BSJ (4 January 2010). "NSV 128". AAVSO Website. American Association of Variable Star Observers. Retrieved 21 December 2013.
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