Astronomy:Rho3 Arietis
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Aries |
| Right ascension | 02h 56m 26.1549s[1] |
| Declination | +18° 01′ 23.2277″[1] |
| Apparent magnitude (V) | 5.63[2] |
| Characteristics | |
| Spectral type | F6 V[3] |
| U−B color index | −0.02[2] |
| B−V color index | +0.44[2] |
| V−R color index | 0.3[2] |
| R−I color index | 0.2[2] |
| Astrometry | |
| Radial velocity (Rv) | +10.5[4] km/s |
| Proper motion (μ) | RA: +281.75[1] mas/yr Dec.: −218.90[1] mas/yr |
| Parallax (π) | 28.29 ± 0.43[1] mas |
| Distance | 115 ± 2 ly (35.3 ± 0.5 pc) |
| Absolute magnitude (MV) | 2.89[4] |
| Details | |
| Surface gravity (log g) | 4.19[5] cgs |
| Temperature | 6,380[5] K |
| Metallicity [Fe/H] | 0.23[5] dex |
| Rotational velocity (v sin i) | 15[6] km/s |
| Age | 2.4[4] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Rho3 Arietis (Rho3 Ari, ρ3 Arietis, ρ3 Ari) is the Bayer designation for a star in the northern constellation of Aries. It is faintly visible to the naked eye with an apparent visual magnitude of 5.63.[2] Based upon an annual parallax shift of 28.29 mas,[1] this star is located at a distance of approximately 115 light-years (35 parsecs) from Earth.
This is an astrometric binary system.[7] The visible component is an F-type main sequence star with a stellar classification of F6 V.[3] It is around 2.4 billion years old[4] and has a high abundance of elements other than hydrogen and helium when compared to the Sun.[5]
Name
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.[8] 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[9]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, doi:10.1051/0004-6361:20078357, Bibcode: 2007A&A...474..653V.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 "rho Ari". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=rho+Ari.
- ↑ 3.0 3.1 Abt, Helmut A. (January 2009), "MK Classifications of Spectroscopic Binaries", The Astrophysical Journal Supplement 180 (1): 117–118, doi:10.1088/0067-0049/180/1/117, Bibcode: 2009ApJS..180..117A.
- ↑ 4.0 4.1 4.2 4.3 Holmberg, J.; Nordström, B.; Andersen, J. (July 2009), "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics", Astronomy and Astrophysics 501 (3): 941–947, doi:10.1051/0004-6361/200811191, Bibcode: 2009A&A...501..941H
- ↑ 5.0 5.1 5.2 5.3 Balachandran, Suchitra (May 1, 1990), "Lithium depletion and rotation in main-sequence stars", Astrophysical Journal, Part 1 354: 310–332, doi:10.1086/168691, Bibcode: 1990ApJ...354..310B.
- ↑ 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.
- ↑ 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, doi:10.1111/j.1365-2966.2008.13596.x, Bibcode: 2008MNRAS.389..869E.
- ↑ 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, https://archive.org/details/starnamestheirlo00alle/page/83, retrieved 2010-12-12.
- ↑ Jack W. Rhoads - Technical Memorandum 33-507-A Reduced Star Catalog Containing 537 Named Stars, Jet Propulsion Laboratory, California Institute of Technology; November 15, 1971
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