Astronomy:HD 1606

From HandWiki
Short description: Star in the constellation Andromeda
HD 1606
Observation data
Equinox J2000.0]] (ICRS)
Constellation Andromeda[1]
Right ascension  00h 20m 24.40107s[2]
Declination +30° 56′ 08.2099″[2]
Apparent magnitude (V) 5.869[3]
Characteristics
Evolutionary stage main sequence[4]
Spectral type B7V[5]
U−B color index −0.45[6]
B−V color index −0.10[6]
Variable type Suspected[7]
Astrometry
Radial velocity (Rv)3.8[8] km/s
Proper motion (μ) RA: 15.734±0.159[2] mas/yr
Dec.: −2.957±0.125[2] mas/yr
Parallax (π)5.5900 ± 0.1069[2] mas
Distance580 ± 10 ly
(179 ± 3 pc)
Absolute magnitude (MV)−0.5[9]
Details
Mass3.75±0.08[4] M☉
Radius2.9[10] R☉
Luminosity245+36
−31[4] L☉
Surface gravity (log g)3.988±0.017[11] cgs
Temperature13,186±100[11] K
Rotational velocity (v sin i)113±8[11] km/s
Age211[12] Myr
Other designations
NSV 128, BD+30°42, GC 408, HD 1606, HIP 1630, HR 78, SAO 53820, PPM 65213[13]
Database references
SIMBADdata

HD 1606 is a single[14] star in the northern constellation of Andromeda, positioned a few degrees to the northeast of the bright star Alpheratz. It has a blue-white hue and is dimly visible to the naked eye with an apparent visual magnitude of 5.87.[3] Although it is suspected of variability, none has been conclusively found.[15] The star is located at a distance of approximately 580 light-years (179 parsecs) from the Sun based on parallax,[2] and is drifting further away with a radial velocity of +4 km/s.[8] It has an absolute magnitude of −0.5.[9]

This is a B-type main-sequence star with a stellar classification of B7V,[5] which means it is currently generating energy through hydrogen fusion at its core. It has 3.75[4] times the mass of the Sun and a fairly high rate of spin, showing a projected rotational velocity of 113 km/s.[11] The star is radiating 245[4] times the luminosity of the Sun from its photosphere at an effective temperature of 13,186 K.[11]

References

  1. ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific 99 (617): 695. doi:10.1086/132034. Bibcode: 1987PASP...99..695R  Constellation record for this object at VizieR.
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G.  Gaia DR2 record for this source at VizieR.
  3. ↑ 3.0 3.1 Høg, E. et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics 355: L27. Bibcode: 2000A&A...355L..27H. 
  4. ↑ 4.0 4.1 4.2 4.3 4.4 Zorec, J. et al. (2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics 537: A120. doi:10.1051/0004-6361/201117691. Bibcode: 2012A&A...537A.120Z. 
  5. ↑ 5.0 5.1 Cowley, A. (1972). "Spectral classification of the bright B8 stars". The Astronomical Journal 77: 750. doi:10.1086/111348. Bibcode: 1972AJ.....77..750C. 
  6. ↑ 6.0 6.1 Hamdy, M. A. et al. (1993). "A catalogue of spectral classification and photometric data of B-type stars". Astrophysics and Space Science 203 (1): 53–107. doi:10.1007/BF00659414. Bibcode: 1993Ap&SS.203...53H. 
  7. ↑ Samus, N. N. et al. (2009). "General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S 1. Bibcode: 2009yCat....102025S. 
  8. ↑ 8.0 8.1 Wilson, R. E. (1953). "General Catalogue of Stellar Radial Velocities". Carnegie Institute Washington D.C. Publication (Carnegie Institute of Washington D.C.). Bibcode: 1953GCRV..C......0W. 
  9. ↑ 9.0 9.1 Eggen, O. J. (1977). "Is star formation bimodal ? II. The nearest early-type stars". Publications of the Astronomical Society of the Pacific 89: 187. doi:10.1086/130099. Bibcode: 1977PASP...89..187E. 
  10. ↑ Pasinetti Fracassini, L. E. et al. (2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)". Astronomy and Astrophysics 367 (2): 521. doi:10.1051/0004-6361:20000451. Bibcode: 2001A&A...367..521P. 
  11. ↑ 11.0 11.1 11.2 11.3 11.4 Huang, Wenjin et al. (2010). "A Stellar Rotation Census of B Stars: From Zams to Tams". The Astrophysical Journal 722 (1): 605–619. doi:10.1088/0004-637X/722/1/605. Bibcode: 2010ApJ...722..605H. 
  12. ↑ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters 38 (12): 771. doi:10.1134/S1063773712120031. Bibcode: 2012AstL...38..771G. 
  13. ↑ "HD 1606". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+1606. 
  14. ↑ Eggleton, P. P.; Tokovinin, A. A. (2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society 389 (2): 869. doi:10.1111/j.1365-2966.2008.13596.x. Bibcode: 2008MNRAS.389..869E. 
  15. ↑ BSJ (4 January 2010). "NSV 128". AAVSO Website. American Association of Variable Star Observers. http://www.aavso.org/vsx/index.php?view=detail.top&oid=38752. 



Retrieved from "https://handwiki.org/wiki/index.php?title=Astronomy:HD_1606&oldid=3920489"