HD 1606

Star in the constellation Andromeda

HD 1606
Observation data Epoch J2000 Equinox J2000
Constellation	Andromeda
Right ascension	00^h 20^m 24.40107^s^[1]
Declination	+30° 56′ 08.2099″^[1]
Apparent magnitude (V)	5.869^[2]
Characteristics
Evolutionary stage	main sequence^[3]
Spectral type	B7V^[4]
U−B color index	−0.45^[5]
B−V color index	−0.10^[5]
Variable type	Suspected^[6]
Astrometry

Radial velocity (R_v)	3.8^[7] km/s
Proper motion (μ)	RA: 15.734±0.159^[1] mas/yr Dec.: −2.957±0.125^[1] mas/yr
Parallax (π)	5.5900 ± 0.1069 mas^[1]
Distance	580 ± 10 ly (179 ± 3 pc)
Absolute magnitude (M_V)	−0.5^[8]

Details

Mass	3.75±0.08^[3] `M`_☉
Radius	2.9^[9] `R`_☉
Luminosity	245+36 −31^[3] `L`_☉
Surface gravity (log g)	3.988±0.017^[10] cgs
Temperature	13,186±100^[10] K
Rotational velocity (v sin i)	113±8^[10] km/s

Other designations
NSV 128, AG+30° 32, BD+30°42, GC 408, HD 1606, HIP 1630, HR 78, SAO 53820, PPM 65213^[11]
Database references
SIMBAD	data

HD 1606 is a single^[12] 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.^[2] Although it is suspected of variability, none has been conclusively found.^[13] The star is located at a distance of approximately 580 light-years (179 parsecs) from the Sun based on parallax,^[1] and is drifting further away with a radial velocity of +4 km/s.^[7] It has an absolute magnitude of −0.5.^[8]

This is a B-type main-sequence star with a stellar classification of B7V,^[4] which means it is currently generating energy through hydrogen fusion at its core. It has 3.75^[3] times the mass of the Sun and a fairly high rate of spin, showing a projected rotational velocity of 113 km/s.^[10] The star is radiating 245^[3] times the luminosity of the Sun from its photosphere at an effective temperature of 13,186 K.^[10]

References

^ ^a ^b ^c ^d ^e ^f 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.
^ ^a ^b 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.
^ ^a ^b ^c ^d ^e 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.
^ ^a ^b Cowley, A. (1972). "Spectral classification of the bright B8 stars". The Astronomical Journal. 77: 750. Bibcode:1972AJ.....77..750C. doi:10.1086/111348.
^ ^a ^b 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.
^ 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.
^ ^a ^b 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.
^ ^a ^b 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.
^ 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.
^ ^a ^b ^c ^d ^e 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.
^ "HD 1606". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-07-06.
^ 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.
^ BSJ (4 January 2010). "NSV 128". AAVSO Website. American Association of Variable Star Observers. Retrieved 21 December 2013.

Constellation of Andromeda

Stars

Bayer	α (Alpheratz) β (Mirach) γ (Almach) δ ε ζ η θ ι κ λ μ ν ξ (Adhil) ο π ρ σ τ υ (Titawin) φ χ ψ ω A b c υ Per (Nembus)
Flamsteed	2 3 4 5 6 7 8 9 10 11 12 13 14 (Veritate) 15 18 22 23 26 28 32 36 39 41 44 45 47 55 56 58 59 63 64 65 66 6 Per
Variable	R T U W Z RT RV RX SU SW TU TW WZ XZ AB AC AD AE AF AR BM BX CC CG CN DS DX EG ET EU FF GP GQ GX GR GY HH HN IW KK KX KZ LL LN LP LQ OP OS OU PX PY QO QR QV QX V385 V428 V439 V455 V529 V807
HR	1 40 56 78 104 122 134 178 275 282 283 289 379 410 483 687 746 748 8884 8925 8950 8962 8973 9011 9074 9075 9105
HD	16175 (Buna) 222155
Other	3XMM J004232.1+411314 ADS 48 HAT-P-6 (Sterrennacht) HAT-P-16 HAT-P-19 HAT-P-28 M31-RV KELT-1 NGC 44 NGC 82 NGC 84 NGC 91 NGC 162 NGC 464 Qatar-3 Qatar-4 PA-99-N2 WASP-1 WISE 0146+4234 WISE J0005+3737 WISE J004945.61+215120.0

Exoplanets	14 Andromedae b κ Andromedae b υ Andromedae b c d Gliese 15 Ab c HD 13931 b HD 16175 b HAT-P-6b HAT-P-32b WASP-1b WASP-33b Qatar-4b Qatar-5b

Star
clusters

NGC	206 272 752 956 7686
Other	Mayall II RBC EXT8

Nebulae

NGC	7662

Galaxies

Messier	32 110
NGC	5 11 13 19 20 21 27 39 43 48 49 51 67 68 69 70 71 72 74 76 79 80 81 83 85 86 90 93 94 96 97 108 109 112 140 149 160 169 181 183 184 214 218 226 228 229 233 243 252 258 260 262 280 304 317 389 393 404 425 431 477 512 513 523 528 529 531 536 542 605 620 668 679 687 700 703 704 705 708 709 710 712 714 717 721 732 753 759 801 812 834 891 906 910 911 912 913 920 937 980 995 996 999 1000 7640 7836
Numbered	I II III IV V VIII IX X XI XVIII XIX XXI
Other	3C 66A 3C 66B Andromeda Galaxy Arp 273 Donatiello I