HD 1606

Last updated
HD 1606
Observation data
Epoch J2000       Equinox J2000
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  mas [2]
Distance 580 ± 10  ly
(179 ± 3  pc)
Absolute magnitude  (MV)−0.5 [9]
Details
Mass 3.75±0.08 [4]   M☉
Radius 2.9 [10]   R☉
Luminosity 245+36
−31 [4]   L☉
Surface gravity (log g)3.988±0.017 [11]   cgs
Temperature 13,186±100 [11]   K
Rotational velocity (v sin i)113±8 [11]  km/s
Age 211 [12]   Myr
Other designations
NSV 128, AG+30°32, BD+30°42, GC 408, HD 1606, HIP 1630, HR 78, SAO 53820, PPM 65213 [13]
Database references
SIMBAD data

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. Bibcode:1987PASP...99..695R. doi: 10.1086/132034 . Constellation record for this object at VizieR.
  2. 1 2 3 4 5 6 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.
  3. 1 2 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. 1 2 3 4 5 Zorec, J.; et al. (2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics. 537: A120. arXiv: 1201.2052 . Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. S2CID   55586789.
  5. 1 2 Cowley, A. (1972). "Spectral classification of the bright B8 stars". The Astronomical Journal. 77: 750. Bibcode:1972AJ.....77..750C. doi:10.1086/111348.
  6. 1 2 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. Bibcode:1993Ap&SS.203...53H. doi:10.1007/BF00659414. S2CID   122459090.
  7. ↑ Samus, N. N.; Durlevich, O. V.; 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. 1 2 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. 1 2 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 .
  10. ↑ Pasinetti Fracassini, L. E.; et al. (2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)". Astronomy and Astrophysics. 367 (2) (Third ed.): 521. arXiv: astro-ph/0012289 . Bibcode:2001A&A...367..521P. doi:10.1051/0004-6361:20000451. S2CID   425754.
  11. 1 2 3 4 5 Huang, Wenjin; et al. (2010). "A Stellar Rotation Census of B Stars: From Zams to Tams". The Astrophysical Journal. 722 (1): 605–619. arXiv: 1008.1761 . Bibcode:2010ApJ...722..605H. doi:10.1088/0004-637X/722/1/605. S2CID   118532653.
  12. ↑ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771. arXiv: 1606.08814 . Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031.
  13. ↑ "HD 1606". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2020-07-06.
  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. arXiv: 0806.2878 . Bibcode:2008MNRAS.389..869E. doi: 10.1111/j.1365-2966.2008.13596.x . S2CID   14878976.
  15. ↑ BSJ (4 January 2010). "NSV 128". AAVSO Website. American Association of Variable Star Observers . Retrieved 21 December 2013.
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