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Rho1 Arietis

Rho1 Arietis is the Bayer designation for a star in the northern constellation of Aries, the ram. It has an apparent visual magnitude of 7.01,[2] making it a challenge to see with the naked eye even under ideal dark-sky conditions. Based upon an annual parallax shift measurement of 12.07 mas,[1] it is 270 light-years (83 parsecs) distant from the Earth. It is a white-hued A5 main sequence star.

Rho1 Arietis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Aries
Right ascension 02h 54m 55.19994s[1]
Declination +17° 44′ 05.1102″[1]
Apparent magnitude (V) 7.01[2]
Characteristics
Spectral type A5 V[3]
U−B color index +0.03[4]
B−V color index +0.28[4]
Astrometry
Radial velocity (Rv)+3.2 ± 3.6[2] km/s
Proper motion (μ) RA: +46.18[1] mas/yr
Dec.: −25.50[1] mas/yr
Parallax (π)12.07 ± 0.70 mas[1]
Distance270 ± 20 ly
(83 ± 5 pc)
Absolute magnitude (MV)+2.43[5]
Details
Luminosity8.85[5] L
Other designations
Rho1 Ari, 44 Arietis, BD+17°454, GC 3492, HD 18091, HIP 13579, SAO 93178.[6]
Database references
SIMBADdata

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 Gontcharov, G. A. (November 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.
  3. ^ Andersson, B.-G.; Idzi, R.; Uomoto, Alan; Wannier, P. G.; Chen, B.; Jorgensen, A. M. (2002). "A Spectroscopic and Photometric Survey of Stars in the Field of L1457: A New Distance Determination". The Astronomical Journal. 124 (4): 2164. Bibcode:2002AJ....124.2164A. doi:10.1086/342541.
  4. ^ a b Oja, T. (1987). "UBV photometry of stars whose positions are accurately known". Astronomy and Astrophysics Supplement Series. 71: 561. Bibcode:1987A&AS...71..561O.
  5. ^ 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.
  6. ^ "44 Ari -- Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2012-08-08.

External links

  • Image Rho1 Arietis


rho1, arietis, other, stars, with, this, bayer, designation, arietis, bayer, designation, star, northern, constellation, aries, apparent, visual, magnitude, making, challenge, with, naked, even, under, ideal, dark, conditions, based, upon, annual, parallax, sh. For other stars with this Bayer designation see r Arietis Rho1 Arietis is the Bayer designation for a star in the northern constellation of Aries the ram It has an apparent visual magnitude of 7 01 2 making it a challenge to see with the naked eye even under ideal dark sky conditions Based upon an annual parallax shift measurement of 12 07 mas 1 it is 270 light years 83 parsecs distant from the Earth It is a white hued A5 main sequence star Rho1 Arietis Observation dataEpoch J2000 0 Equinox J2000 0 ICRS Constellation AriesRight ascension 02h 54m 55 19994s 1 Declination 17 44 05 1102 1 Apparent magnitude V 7 01 2 CharacteristicsSpectral type A5 V 3 U B color index 0 03 4 B V color index 0 28 4 AstrometryRadial velocity Rv 3 2 3 6 2 km sProper motion m RA 46 18 1 mas yr Dec 25 50 1 mas yrParallax p 12 07 0 70 mas 1 Distance270 20 ly 83 5 pc Absolute magnitude MV 2 43 5 DetailsLuminosity8 85 5 L Other designationsRho1 Ari 44 Arietis BD 17 454 GC 3492 HD 18091 HIP 13579 SAO 93178 6 Database referencesSIMBADdataReferences 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 Gontcharov G A November 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 Andersson B G Idzi R Uomoto Alan Wannier P G Chen B Jorgensen A M 2002 A Spectroscopic and Photometric Survey of Stars in the Field of L1457 A New Distance Determination The Astronomical Journal 124 4 2164 Bibcode 2002AJ 124 2164A doi 10 1086 342541 a b Oja T 1987 UBV photometry of stars whose positions are accurately known Astronomy and Astrophysics Supplement Series 71 561 Bibcode 1987A amp AS 71 561O 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 44 Ari Star SIMBAD Astronomical Database Centre de Donnees astronomiques de Strasbourg retrieved 2012 08 08 External links EditImage Rho1 Arietis 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 Rho1 Arietis amp oldid 1021310077, wikipedia, wiki, book, books, library,

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