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Nu Andromedae

January 10, 2023

Not to be confused with Andromeda V or 5 Andromedae.
"ν And" redirects here. For other uses, see Vand.

Nu Andromedae (Nu And, ν Andromedae, ν And) is a binary star in the constellation Andromeda. The system has an apparent visual magnitude of 4.5,[2] which is bright enough to be seen with the naked eye. It is approximately 620 light-years (190 parsecs) from Earth.[1] Situated just over a degree to the west of this star is the Andromeda Galaxy.[12]

Nu Andromedae
Location of ν Andromedae (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 00h 49m 48.84737s[1]
Declination +41° 04′ 44.0764″[1]
Apparent magnitude (V) 4.522[2]
Characteristics
Spectral type B4/5 V[3][4] + F8 V[5]
U−B color index –0.573[2]
B−V color index –0.136[2]
Astrometry
Radial velocity (Rv)–23.9[6] km/s
Proper motion (μ) RA: +22.77 ±0.12[1] mas/yr
Dec.: –18.35 ±0.09[1] mas/yr
Parallax (π)5.28 ± 0.15 mas[1]
Distance620 ± 20 ly
(189 ± 5 pc)
Absolute magnitude (MV)−1.85[7]
Orbit[5]
Period (P)4.2827 d
Eccentricity (e)0.03
Longitude of the node (Ω)25.°
Periastron epoch (T)18155.67
Semi-amplitude (K1)
(primary)		71.7 km/s
Semi-amplitude (K2)
(secondary)		101.9 km/s
Details
ν And A
Mass5.9 ± 0.2[3] M☉
Radius3.4[8] R☉
Luminosity1,104[7] L☉
Surface gravity (log g)4.12 ± 0.43[9] cgs
Temperature14,851 ± 396[9] K
Metallicity [Fe/H]+0.14 ± 0.17[9] dex
Rotational velocity (v sin i)20[10] km/s
Age63.1 ± 17.9[3] Myr
Other designations
ν Andromedae, ν And, Nu And, Nu Andromedae 35 Andromedae, 35 And, BD+40 171, FK5 1021, HD 4727, HIP 3881, HR 226, SAO 36699.[11]
Database references
SIMBADdata
Nu Andromedae is the prominent blue star in the upper right of this image. At the center is the Andromeda Galaxy.

Nu Andromedae is spectroscopic binary[3] system with a nearly circular orbit that has a period of 4.2828 days.[5] The primary component is a B-type main sequence star with a stellar classification of B5 V.[3] The fainter secondary has a classification of F8 V,[5] which makes it an F-type main sequence star. The pair is about 63 million years old.[3]

Naming

In Chinese, 奎宿 (Kuí Sù), meaning Legs (asterism), refers to an asterism consisting of ν Andromedae, η Andromedae, 65 Piscium, ζ Andromedae, ε Andromedae, δ Andromedae, π Andromedae, μ Andromedae, β Andromedae, σ Piscium, τ Piscium, 91 Piscium, υ Piscium, φ Piscium, χ Piscium and ψ1 Piscium. Consequently, the Chinese name for ν Andromedae itself is 奎宿七 (Kuí Sù qī, English: the Seventh Star of Legs.)[13]

References

  1. ^ a b c d e f van Leeuwen, F. (November 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, S2CID 18759600.
  2. ^ a b c d Oja, T. (April 1983), "UBV photometry of FK4 and FK4 supplement stars", Astronomy and Astrophysics Supplement Series, 52: 131–134, Bibcode:1983A&AS...52..131O.
  3. ^ a b c d e f Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (January 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun", Monthly Notices of the Royal Astronomical Society, 410 (1): 190–200, arXiv:1007.4883, Bibcode:2011MNRAS.410..190T, doi:10.1111/j.1365-2966.2010.17434.x, S2CID 118629873.
  4. ^ . astrostudio.org. Archived from the original on 23 September 2015. Retrieved 18 August 2014.
  5. ^ a b c d Pourbaix, D.; et al. (September 2004), "SB9: The ninth catalogue of spectroscopic binary orbits", Astronomy and Astrophysics, 424: 727–732, arXiv:astro-ph/0406573, Bibcode:2004A&A...424..727P, doi:10.1051/0004-6361:20041213, S2CID 119387088.
  6. ^ 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.
  7. ^ a b 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.
  8. ^ Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics", Astronomy and Astrophysics, 367 (2): 521–524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451, S2CID 425754.
  9. ^ a b c Koleva, M.; Vazdekis, A. (February 2012), "Stellar population models in the UV. I. Characterisation of the New Generation Stellar Library", Astronomy & Astrophysics, 538: A143, arXiv:1111.5449, Bibcode:2012A&A...538A.143K, doi:10.1051/0004-6361/201118065, S2CID 53999614.
  10. ^ Abt, Helmut A.; Levato, Hugo; Grosso, Monica (July 2002), "Rotational Velocities of B Stars", The Astrophysical Journal, 573 (1): 359–365, Bibcode:2002ApJ...573..359A, doi:10.1086/340590.
  11. ^ "35 And -- Star", SIMBAD Astronomical Object Database, Centre de Données astronomiques de Strasbourg, retrieved 2012-06-22.
  12. ^ Mollise, Rod (2006), The Urban Astronomer's Guide: A Walking Tour of the Cosmos for City Sky Watchers, Patrick Moore's Practical Astronomy Series, Springer, p. 178, ISBN 1846282160.
  13. ^ (in Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 19 日

External links

  • SIMBAD (ed.). "35 And -- Spectroscopic binary". Retrieved 11 September 2010.
  • Kaler, James B. "Nu And". Stars. Retrieved 11 September 2010.


 

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January 10, 2023
andromedae, confused, with, andromeda, andromedae, redirects, here, other, uses, vand, andromedae, binary, star, constellation, andromeda, system, apparent, visual, magnitude, which, bright, enough, seen, with, naked, approximately, light, years, parsecs, from. Not to be confused with Andromeda V or 5 Andromedae n And redirects here For other uses see Vand Nu Andromedae Nu And n Andromedae n And is a binary star in the constellation Andromeda The system has an apparent visual magnitude of 4 5 2 which is bright enough to be seen with the naked eye It is approximately 620 light years 190 parsecs from Earth 1 Situated just over a degree to the west of this star is the Andromeda Galaxy 12 Nu AndromedaeLocation of n Andromedae circled Observation dataEpoch J2000 Equinox J2000Constellation AndromedaRight ascension 00h 49m 48 84737s 1 Declination 41 04 44 0764 1 Apparent magnitude V 4 522 2 CharacteristicsSpectral type B4 5 V 3 4 F8 V 5 U B color index 0 573 2 B V color index 0 136 2 AstrometryRadial velocity Rv 23 9 6 km sProper motion m RA 22 77 0 12 1 mas yr Dec 18 35 0 09 1 mas yrParallax p 5 28 0 15 mas 1 Distance620 20 ly 189 5 pc Absolute magnitude MV 1 85 7 Orbit 5 Period P 4 2827 dEccentricity e 0 03Longitude of the node W 25 Periastron epoch T 18155 67Semi amplitude K1 primary 71 7 km sSemi amplitude K2 secondary 101 9 km sDetailsn And AMass5 9 0 2 3 M Radius3 4 8 R Luminosity1 104 7 L Surface gravity log g 4 12 0 43 9 cgsTemperature14 851 396 9 KMetallicity Fe H 0 14 0 17 9 dexRotational velocity v sin i 20 10 km sAge63 1 17 9 3 MyrOther designationsn Andromedae n And Nu And Nu Andromedae 35 Andromedae 35 And BD 40 171 FK5 1021 HD 4727 HIP 3881 HR 226 SAO 36699 11 Database referencesSIMBADdata Nu Andromedae is the prominent blue star in the upper right of this image At the center is the Andromeda Galaxy Nu Andromedae is spectroscopic binary 3 system with a nearly circular orbit that has a period of 4 2828 days 5 The primary component is a B type main sequence star with a stellar classification of B5 V 3 The fainter secondary has a classification of F8 V 5 which makes it an F type main sequence star The pair is about 63 million years old 3 Naming EditIn Chinese 奎宿 Kui Su meaning Legs asterism refers to an asterism consisting of n Andromedae h Andromedae 65 Piscium z Andromedae e Andromedae d Andromedae p Andromedae m Andromedae b Andromedae s Piscium t Piscium 91 Piscium y Piscium f Piscium x Piscium and ps1 Piscium Consequently the Chinese name for n Andromedae itself is 奎宿七 Kui Su qi English the Seventh Star of Legs 13 References Edit a b c d e f van Leeuwen F November 2007 Validation of the new Hipparcos reduction Astronomy and Astrophysics 474 2 653 664 arXiv 0708 1752 Bibcode 2007A amp A 474 653V doi 10 1051 0004 6361 20078357 S2CID 18759600 a b c d Oja T April 1983 UBV photometry of FK4 and FK4 supplement stars Astronomy and Astrophysics Supplement Series 52 131 134 Bibcode 1983A amp AS 52 131O a b c d e f Tetzlaff N Neuhauser R Hohle M M January 2011 A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun Monthly Notices of the Royal Astronomical Society 410 1 190 200 arXiv 1007 4883 Bibcode 2011MNRAS 410 190T doi 10 1111 j 1365 2966 2010 17434 x S2CID 118629873 Nu Andromedae a blue main sequence star in Andromeda astrostudio org Archived from the original on 23 September 2015 Retrieved 18 August 2014 a b c d Pourbaix D et al September 2004 SB9 The ninth catalogue of spectroscopic binary orbits Astronomy and Astrophysics 424 727 732 arXiv astro ph 0406573 Bibcode 2004A amp A 424 727P doi 10 1051 0004 6361 20041213 S2CID 119387088 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 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 Pasinetti Fracassini L E et al February 2001 Catalogue of Apparent Diameters and Absolute Radii of Stars CADARS Third edition Comments and statistics Astronomy and Astrophysics 367 2 521 524 arXiv astro ph 0012289 Bibcode 2001A amp A 367 521P doi 10 1051 0004 6361 20000451 S2CID 425754 a b c Koleva M Vazdekis A February 2012 Stellar population models in the UV I Characterisation of the New Generation Stellar Library Astronomy amp Astrophysics 538 A143 arXiv 1111 5449 Bibcode 2012A amp A 538A 143K doi 10 1051 0004 6361 201118065 S2CID 53999614 Abt Helmut A Levato Hugo Grosso Monica July 2002 Rotational Velocities of B Stars The Astrophysical Journal 573 1 359 365 Bibcode 2002ApJ 573 359A doi 10 1086 340590 35 And Star SIMBAD Astronomical Object Database Centre de Donnees astronomiques de Strasbourg retrieved 2012 06 22 Mollise Rod 2006 The Urban Astronomer s Guide A Walking Tour of the Cosmos for City Sky Watchers Patrick Moore s Practical Astronomy Series Springer p 178 ISBN 1846282160 in Chinese AEEA Activities of Exhibition and Education in Astronomy 天文教育資訊網 2006 年 5 月 19 日External links EditSIMBAD ed 35 And Spectroscopic binary Retrieved 11 September 2010 Kaler James B Nu And Stars Retrieved 11 September 2010 This binary or multiple star system related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Nu Andromedae amp oldid 1121024575, wikipedia, wiki, book, books, library,

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