Rho3 Arietis

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For other stars with this Bayer designation, see ρ Arietis.
Rho3 Arietis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Aries[1]
Right ascension 02h 56m 26.1717s[2]
Declination +18° 01′ 23.665″[2]
Apparent magnitude (V) 5.58[1]
Characteristics
Spectral type F6 V[3]
U−B color index −0.02[4]
B−V color index +0.471±0.003[1]
V−R color index 0.3[4]
R−I color index 0.2[4]
Astrometry
Radial velocity (Rv)+13.576±0.0016[2] km/s
Proper motion (μ) RA: +262.027 mas/yr[2]
Dec.: −231.606 mas/yr[2]
Parallax (π)27.2557±0.1350 mas[2]
Distance119.7 ± 0.6 ly
(36.7 ± 0.2 pc)
Absolute magnitude (MV)2.89[5]
Details
Mass1.49[6] M☉
Luminosity6.65[1] L☉
Surface gravity (log g)4.19[7] cgs
Temperature6,380[7] K
Metallicity [Fe/H]−0.23±0.10[7] dex
Rotational velocity (v sin i)15[8] km/s
Age2.4[5] Gyr
Other designations
ρ3 Ari, Rho3 Arietis, Rho3 Ari, 46 Arietis, 46 Ari, BD+17 458, FK5 2204, GC 3532, HD 18256, HIP 13702, HR 869, SAO 93195, PPM 118684, LTT 10961, NLTT 9363[4]
Database references
SIMBADdata

Rho3 Arietis is a star in the northern constellation of Aries. Its name is a Bayer designation that is Latinized from ρ3 Arietis, and abbreviated Rho3 Ari or ρ3 Ari. This star is faintly visible to the naked eye with an apparent visual magnitude of 5.63.[4] Based upon an annual parallax shift of 27.26 mas,[9] this star is located at a distance of 120 light-years (37 parsecs) from Earth. It is drifting further away from the Sun with a radial velocity of +13.6 km/s.[2]

This is an astrometric binary system.[10][6] The visible component is an F-type main sequence star with a stellar classification of F6 V.[3] This star has 1.49[6] times the mass of the Sun and is radiating 6.65[1] times the Sun's luminosity at an effective temperature of 6,380 K.[7] It is around 2.4 billion years old[5] and has a lower abundance of elements other than hydrogen and helium when compared to the Sun.[7]

Name

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This star, along with δ Ari, ε Ari, ζ Ari, and π Ari, were Al Bīrūnī's Al Buṭain (ألبطين), the dual of Al Baṭn, the Belly.[11] According to the catalogue of stars in the Technical Memorandum 33-507 - A Reduced Star Catalog Containing 537 Named Stars, Al Buṭain were the title for five stars : δ Ari as Botein, π Ari as Al Buṭain I, ρ3 Ari as Al Buṭain II, ε Ari as Al Buṭain III dan ζ Ari as Al Buṭain IV[12]

References

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  1. ^ 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. XHIP record for this object at VizieR.
  2. ^ 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.
  3. ^ a b Abt, Helmut A. (January 2009), "MK Classifications of Spectroscopic Binaries", The Astrophysical Journal Supplement, 180 (1): 117–118, Bibcode:2009ApJS..180..117A, doi:10.1088/0067-0049/180/1/117, S2CID 122811461.
  4. ^ a b c d e "rho Ari", SIMBAD, Centre de données astronomiques de Strasbourg, retrieved 2012-08-09.
  5. ^ a b c Holmberg, J.; et al. (July 2009), "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics", Astronomy and Astrophysics, 501 (3): 941–947, arXiv:0811.3982, Bibcode:2009A&A...501..941H, doi:10.1051/0004-6361/200811191, S2CID 118577511.
  6. ^ a b c Tokovinin, Andrei (2014), "From Binaries to Multiples. II. Hierarchical Multiplicity of F and G Dwarfs", The Astronomical Journal, 147 (4): 87, arXiv:1401.6827, Bibcode:2014AJ....147...87T, doi:10.1088/0004-6256/147/4/87, S2CID 56066740.
  7. ^ a b c d e Balachandran, Suchitra (May 1, 1990), "Lithium depletion and rotation in main-sequence stars", Astrophysical Journal, Part 1, 354: 310–332, Bibcode:1990ApJ...354..310B, doi:10.1086/168691.
  8. ^ Bernacca, P. L.; Perinotto, M. (1970), "A catalogue of stellar rotational velocities", Contributi Osservatorio Astronomico di Padova in Asiago, 239 (1): 1, Bibcode:1970CoAsi.239....1B.
  9. ^ 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.
  10. ^ 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.
  11. ^ Allen, R. H. (1963), Star Names: Their Lore and Meaning (Reprint ed.), New York, NY: Dover Publications Inc, p. 83, ISBN 0-486-21079-0, retrieved 2010-12-12.{{citation}}: CS1 maint: ignored ISBN errors (link)
  12. ^ Rhoads, Jack W. (November 15, 1971), Technical Memorandum 33-507-A Reduced Star Catalog Containing 537 Named Stars, Jet Propulsion Laboratory, California Institute of Technology, retrieved 2025-05-08.{{citation}}: CS1 maint: location missing publisher (link)
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