| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aries |
| Right ascension | 03h 01m 54.14125s [1] |
| Declination | +26° 27′ 44.4746″ [1] |
| Apparent magnitude (V) | 5.90 [2] |
| Characteristics | |
| Evolutionary stage | main sequence [1] |
| Spectral type | kA2hA6mA7 [3] |
| U−B color index | +0.12 [2] |
| B−V color index | +0.141±0.006 [4] |
| Astrometry | |
| Radial velocity (Rv) | −1.0 [5] km/s |
| Proper motion (μ) |
RA: −14.323
[1]
mas/
yr Dec.: +5.160 [1] mas/ yr |
| Parallax (π) | 14.6587 ± 0.0844 mas [1] |
| Distance | 223 ± 1
ly (68.2 ± 0.4 pc) |
| Absolute magnitude (MV) | 1.87 [4] |
| Details | |
| Mass | 1.9 [1] M☉ |
| Radius | 2.0 [1] R☉ |
| Luminosity | 16.1 [1] L☉ |
| Surface gravity (log g) | 4.34 [6] cgs |
| Temperature | 8,424 [6] K |
| Metallicity [Fe/H] | −0.02 [6] dex |
| Rotational velocity (v sin i) | 52 [5] km/s |
| Age | 704 [1] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
49 Arietis is a single [8] star in the northern constellation of Aries. 49 Arietis is the Flamsteed designation. It is visible to the naked eye as a faint, white hued star with an apparent visual magnitude of 5.90. [2] The star is located at a distance of about 223 light-years (68 parsecs) distant from Earth based on parallax.
This object is classified as an Am star, [9] or non-magnetic chemically peculiar star of the CP1 [10] class, which means the spectrum displays abnormal abundances of certain heavier elements. It has a stellar classification of kA2hA6mA7, which means it has the calcium K line of an A2 class star, the hydrogen lines of an A6 star, and the metal lines of an A7 star. 49 Arietis has a moderately high rate of spin, showing a projected rotational velocity of 52 km/s, and is radiating 16 times the luminosity of the Sun from its photosphere at an effective temperature of 8,424 K.
- ^ a b c d e f g h i j Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv: 2208.00211. Bibcode: 2023A&A...674A...1G. doi: 10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b c 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.
- ^ Abt, Helmut A.; Morrell, Nidia I. (1995), "The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars", Astrophysical Journal Supplement, 99: 135, Bibcode: 1995ApJS...99..135A, doi: 10.1086/192182.
- ^ 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.
- ^ a b Wielen, R.; et al. (1999), "Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions", Veroeffentlichungen des Astronomischen Rechen-Instituts Heidelberg, 35 (35), Astronomisches Rechen-Institut Heidelberg: 1, Bibcode: 1999VeARI..35....1W.
- ^ a b c 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, S2CID 53999614.
- ^ "49 Ari". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-06-03.
- ^ Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869, arXiv: 0806.2878, Bibcode: 2008MNRAS.389..869E, doi: 10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
- ^ 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.
- ^ Paunzen, E.; et al. (February 2013), "A photometric study of chemically peculiar stars with the STEREO satellites - II. Non-magnetic chemically peculiar stars", Monthly Notices of the Royal Astronomical Society, 429 (1): 119–125, arXiv: 1211.1535, Bibcode: 2013MNRAS.429..119P, doi: 10.1093/mnras/sts318, S2CID 119231581.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aries |
| Right ascension | 03h 01m 54.14125s [1] |
| Declination | +26° 27′ 44.4746″ [1] |
| Apparent magnitude (V) | 5.90 [2] |
| Characteristics | |
| Evolutionary stage | main sequence [1] |
| Spectral type | kA2hA6mA7 [3] |
| U−B color index | +0.12 [2] |
| B−V color index | +0.141±0.006 [4] |
| Astrometry | |
| Radial velocity (Rv) | −1.0 [5] km/s |
| Proper motion (μ) |
RA: −14.323
[1]
mas/
yr Dec.: +5.160 [1] mas/ yr |
| Parallax (π) | 14.6587 ± 0.0844 mas [1] |
| Distance | 223 ± 1
ly (68.2 ± 0.4 pc) |
| Absolute magnitude (MV) | 1.87 [4] |
| Details | |
| Mass | 1.9 [1] M☉ |
| Radius | 2.0 [1] R☉ |
| Luminosity | 16.1 [1] L☉ |
| Surface gravity (log g) | 4.34 [6] cgs |
| Temperature | 8,424 [6] K |
| Metallicity [Fe/H] | −0.02 [6] dex |
| Rotational velocity (v sin i) | 52 [5] km/s |
| Age | 704 [1] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
49 Arietis is a single [8] star in the northern constellation of Aries. 49 Arietis is the Flamsteed designation. It is visible to the naked eye as a faint, white hued star with an apparent visual magnitude of 5.90. [2] The star is located at a distance of about 223 light-years (68 parsecs) distant from Earth based on parallax.
This object is classified as an Am star, [9] or non-magnetic chemically peculiar star of the CP1 [10] class, which means the spectrum displays abnormal abundances of certain heavier elements. It has a stellar classification of kA2hA6mA7, which means it has the calcium K line of an A2 class star, the hydrogen lines of an A6 star, and the metal lines of an A7 star. 49 Arietis has a moderately high rate of spin, showing a projected rotational velocity of 52 km/s, and is radiating 16 times the luminosity of the Sun from its photosphere at an effective temperature of 8,424 K.
- ^ a b c d e f g h i j Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv: 2208.00211. Bibcode: 2023A&A...674A...1G. doi: 10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b c 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.
- ^ Abt, Helmut A.; Morrell, Nidia I. (1995), "The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars", Astrophysical Journal Supplement, 99: 135, Bibcode: 1995ApJS...99..135A, doi: 10.1086/192182.
- ^ 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.
- ^ a b Wielen, R.; et al. (1999), "Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions", Veroeffentlichungen des Astronomischen Rechen-Instituts Heidelberg, 35 (35), Astronomisches Rechen-Institut Heidelberg: 1, Bibcode: 1999VeARI..35....1W.
- ^ a b c 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, S2CID 53999614.
- ^ "49 Ari". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-06-03.
- ^ Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869, arXiv: 0806.2878, Bibcode: 2008MNRAS.389..869E, doi: 10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
- ^ 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.
- ^ Paunzen, E.; et al. (February 2013), "A photometric study of chemically peculiar stars with the STEREO satellites - II. Non-magnetic chemically peculiar stars", Monthly Notices of the Royal Astronomical Society, 429 (1): 119–125, arXiv: 1211.1535, Bibcode: 2013MNRAS.429..119P, doi: 10.1093/mnras/sts318, S2CID 119231581.