13 Andromedae

Star in the constellation Andromeda

13 Andromedae
Observation data Epoch J2000 Equinox J2000
The visual band light curve of 13 Andromedae, adapted from Adelman (2005)^[1]
Constellation	Andromeda
Right ascension	23^h 27^m 07.40^s^[2]
Declination	+42° 54′ 43.2″^[2]
Apparent magnitude (V)	5.75^[3]
Characteristics
Spectral type	B9 III or B9 Mn^[4]
B−V color index	−0.007±0.004^[3]
Variable type	α² CVn^[5]
Astrometry

Radial velocity (R_v)	−8.1±1.6^[6] km/s
Proper motion (μ)	RA: 87.05^[2] mas/yr Dec.: 16.54^[2] mas/yr
Parallax (π)	10.87 ± 0.30 mas^[2]
Distance	300 ± 8 ly (92 ± 3 pc)
Absolute magnitude (M_V)	0.98^[7]

Details

Luminosity	42.89^[3] `L`_☉
Rotational velocity (v sin i)	75^[8] km/s
Age	345^[7] Myr

Other designations
13 And, V388 Andromedae, BD+42° 4672, HD 220885, HIP 115755, HR 8913, SAO 53039, PPM 64250^[9]
Database references
SIMBAD	data

13 Andromedae, abbreviated 13 And, is a single,^[10] blue-white hued variable star^[5] in the northern constellation of Andromeda. 13 Andromedae is the Flamsteed designation, while it bears the variable star designation V388 Andromedae. With a typical apparent visual magnitude of around 5.75,^[3] it is dimly visible to the naked eye under good seeing conditions. The distance to this star can be directly estimated from its annual parallax shift of 10.9 mas,^[2] yielding a range of 300 light years. At that distance, its brightness is diminished by an extinction of 0.13 magnitude due to interstellar dust.^[7] The star is moving closer to the Earth with a heliocentric radial velocity of −8 km/s.^[6]

This is a magnetic chemically peculiar star that has been assigned stellar classifications of B9 III or B9 Mn.^[4] It is a variable star of the Alpha² Canum Venaticorum type, ranging in magnitude from 5.73 down to 5.77^[5] with a period of 1.47946 days.^[4] The star has a high rate of spin, showing a projected rotational velocity of 75 km/s.^[8] 13 Andromedae is around 345^[7] million years old and shines with 43^[3] times the Sun's luminosity.

References

^ Adelman, Saul J. (May 2005). "uvby FCAPT Photometry of the Magnetic Chemically Peculiar Stars 36 Aurigae, HR 2722, 13 Andromedae, and HD 220147". Publications of the Astronomical Society of the Pacific. 117 (831): 476–482. Bibcode:2005PASP..117..476A. doi:10.1086/429640. S2CID 120788302. Retrieved 12 October 2021.
^ ^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.
^ ^a ^b ^c ^d ^e Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID 119257644.
^ ^a ^b ^c Adelman, Saul J. (May 2005), "uvby FCAPT Photometry of the Magnetic Chemically Peculiar Stars 36 Aurigae, HR 2722, 13 Andromedae, and HD 220147", The Publications of the Astronomical Society of the Pacific, 117 (831): 476–482, Bibcode:2005PASP..117..476A, doi:10.1086/429640.
^ ^a ^b ^c Samus', N. N; Kazarovets, E. V; Durlevich, O. V; Kireeva, N. N; Pastukhova, E. N (2017), "General catalogue of variable stars: Version GCVS 5.1", Astronomy Reports, 61 (1): 80, Bibcode:2017ARep...61...80S, doi:10.1134/S1063772917010085, S2CID 125853869.
^ ^a ^b Gontcharov, G. A. (2006), "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system", Astronomy Letters, 32 (11): 759–771, arXiv:1606.08053, Bibcode:2006AstL...32..759G, doi:10.1134/S1063773706110065, S2CID 119231169.
^ ^a ^b ^c ^d Gontcharov, G. A. (November 2012), "Spatial distribution and kinematics of OB stars", Astronomy Letters, 38 (11): 694–706, arXiv:1606.09028, Bibcode:2012AstL...38..694G, doi:10.1134/S1063773712110035, S2CID 119108982.
^ ^a ^b Abt, Helmut A.; et al. (2002), "Rotational Velocities of B Stars", The Astrophysical Journal, 573 (1): 359–365, Bibcode:2002ApJ...573..359A, doi:10.1086/340590.
^ "13 And". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved September 19, 2018.
^ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.

External links

Image 13 Andromedae

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 97 108 109 112 140 149 160 169 181 183 184 214 218 226 228 229 233 243 252 258 260 262 280 304 317 389 393 404 425 431 477 512 513 523 528 529 531 536 542 561 605 620 668 679 687 700 703 704 705 708 709 710 712 714 717 721 732 753 759 801 812 834 891 906 910 911 912 913 920 937 980 995 996 999 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