49 Arietis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aries |
| Right ascension | 03h 01m 54.14047s[1] |
| Declination | +26° 27′ 44.4710″[1] |
| Apparent magnitude (V) | 5.90[2] |
| Characteristics | |
| Spectral type | A3m[3] |
| U−B color index | +0.12[2] |
| B−V color index | +0.14[2] |
| R−I color index | 0.05 |
| Astrometry | |
| Radial velocity (Rv) | -1.0[4] km/s |
| Proper motion (μ) | RA: -15.08[1] mas/yr Dec.: +4.66[1] mas/yr |
| Parallax (π) | 15.54 ± 0.35[1] mas |
| Distance | 210 ± 5 ly (64 ± 1 pc) |
| Details | |
| Surface gravity (log g) | 4.34[5] cgs |
| Temperature | 8,424[5] K |
| Metallicity [Fe/H] | –0.02[5] dex |
| Rotational velocity (v sin i) | 52[4] km/s |
| Other designations | |
49 Arietis is the Flamsteed designation for a star in the northern constellation of Aries. Its apparent magnitude is 5.91 and is located at a distance of approximately 210 light-years (64 parsecs) distant from Earth. 49 Arietis is classified as an Am,[3] or chemically peculiar star, which means the spectrum displays abnormal abundances of certain heavier elements.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 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.
- ↑ 2.0 2.1 2.2 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.
- ↑ 3.0 3.1 Cowley, A. et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819.
- ↑ 4.0 4.1 Wielen, R. et al. (1999), Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions (35), Astronomisches Rechen-Institut Heidelberg, Bibcode:1999VeARI..35....1W.
- ↑ 5.0 5.1 5.2 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.
- ↑ "sig Ari -- Star", SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), retrieved 2012-07-18.
External links
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