54 Arietis
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Aries |
| Right ascension | 03h 08m 21.10919s[1] |
| Declination | +18° 47′ 42.1845″[1] |
| Apparent magnitude (V) | 6.27[2] |
| Distance | 766 ly (235[1] pc) |
| Spectral type | M0 III[3] |
| Other designations | |
54 Arietis (abbreviated 54 Ari) is a star in the northern constellation of Aries. 54 Arietis is the Flamsteed designation. It has an apparent visual magnitude of 6.26. Based upon an annual parallax shift of 4.26 ± 0.73 mas,[1] it is approximately 766 light-years (235 parsecs) distant from Earth. The brightness of the star is diminished by 0.15[5] in magnitude from extinction caused by interstellar gas and dust. This is a red giant star with a stellar classification of M0 III, and is evolving along the asymptotic giant branch.[6] It varies slightly in brightness, with a periodicity of 6.2 days and an amplitude change of 0.0096 in magnitude.[3]
References
- 1 2 3 4 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.
- ↑ Argue, A. N. (1966), "UBV photometry of 550 F, G and K type stars", Monthly Notices of the Royal Astronomical Society 133: 475–493, Bibcode:1966MNRAS.133..475A, doi:10.1093/mnras/133.4.475.
- 1 2 Koen, Chris; Eyer, Laurent (March 2002), "New periodic variables from the Hipparcos epoch photometry", Monthly Notices of the Royal Astronomical Society 331 (1): 45–59, arXiv:astro-ph/0112194, Bibcode:2002MNRAS.331...45K, doi:10.1046/j.1365-8711.2002.05150.x.
- ↑ "54 Ari -- Star", SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), retrieved 2012-07-18.
- ↑ Famaey, B.; et al. (January 2005), "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters", Astronomy and Astrophysics 430: 165–186, arXiv:astro-ph/0409579, Bibcode:2005A&A...430..165F, doi:10.1051/0004-6361:20041272.
- ↑ Eggen, Olin J. (July 1992), "Asymptotic giant branch stars near the sun", Astronomical Journal 104 (1): 275–313, Bibcode:1992AJ....104..275E, doi:10.1086/116239.
External links
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