Astronomy:53 Arietis
From HandWiki
Short description: Star in the constellation Aries
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Aries |
| Right ascension | 03h 07m 25.67315s[1] |
| Declination | +17° 52′ 47.9696″[1] |
| Apparent magnitude (V) | 6.10[2] |
| Characteristics | |
| Spectral type | B1.5 V[3] |
| U−B color index | [4] 0.80[2] |
| B−V color index | −0.12[2] |
| Variable type | β Cep[4] |
| Astrometry | |
| Radial velocity (Rv) | +21.2[5] km/s |
| Proper motion (μ) | RA: −23.733[1] mas/yr Dec.: +8.080[1] mas/yr |
| Parallax (π) | 3.1874 ± 0.0630[1] mas |
| Distance | 1,020 ± 20 ly (314 ± 6 pc) |
| Details | |
| Mass | 7.5±0.2[6] M☉ |
| Radius | 4.2[1] R☉ |
| Luminosity | 1,962[1] L☉ |
| Surface gravity (log g) | 3.99[1] cgs |
| Temperature | 19,065[1] K |
| Metallicity [Fe/H] | −0.18[1] dex |
| Rotational velocity (v sin i) | 5[7] km/s |
| Other designations | |
UW Arietis, BD+17°493, HD 19374, HIP 14514, HR 938, SAO 93284.[8] | |
| Database references | |
| SIMBAD | data |
53 Arietis (abbreviated 53 Ari) is a variable star in the northern constellation of Aries. 53 Arietis is the Flamsteed designation; it also bears the variable star designation UW Arietis. It is a B-type main sequence star with a stellar classification of B1.5 V[3] and mean apparent magnitude of 6.10,[2] which is near the lower limit for naked eye visibility. Based upon an annual parallax shift of 3.2 mas, the estimated distance to this star is roughly 1,020 light-years (314 parsecs).
53 Arietis is a Beta Cephei variable.[4] It is a runaway star with a peculiar velocity of 48.1 km/s relative to its neighbors.[6] The star was ejected from the Orion nebula some 4–5 million years ago, possibly when an orbiting companion exploded as a supernova.[9]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 2.3 Crawford, D. L.; Barnes, J. V.; Golson, J. C. (1971), "Four-color, H-beta, and UBV photometry for bright B-type stars in the northern hemisphere", The Astronomical Journal 76: 1058, doi:10.1086/111220, Bibcode: 1971AJ.....76.1058C.
- ↑ 3.0 3.1 Lesh, Janet Rountree (December 1968), "The Kinematics of the Gould Belt: an Expanding Group?", Astrophysical Journal Supplement 17: 371, doi:10.1086/190179, Bibcode: 1968ApJS...17..371L.
- ↑ 4.0 4.1 4.2 Stankov, Anamarija; Handler, Gerald (June 2005), "Catalog of Galactic β Cephei Stars", The Astrophysical Journal Supplement Series 158 (2): 193–216, doi:10.1086/429408, Bibcode: 2005ApJS..158..193S.
- ↑ Evans, D. S. (June 20–24, 1966), "The Revision of the General Catalogue of Radial Velocities", in Batten, Alan Henry; Heard, John Frederick, Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, 30, University of Toronto: International Astronomical Union, pp. 57, Bibcode: 1967IAUS...30...57E.
- ↑ 6.0 6.1 Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (January 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun", Monthly Notices of the Royal Astronomical Society 410 (1): 190–200, doi:10.1111/j.1365-2966.2010.17434.x, Bibcode: 2011MNRAS.410..190T.
- ↑ Abt, Helmut A.; Levato, Hugo; Grosso, Monica (July 2002), "Rotational Velocities of B Stars", The Astrophysical Journal 573 (1): 359–365, doi:10.1086/340590, Bibcode: 2002ApJ...573..359A.
- ↑ "53 Ari". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=53+Ari.
- ↑ Hoogerwerf, R.; de Bruijne, J. H. J.; de Zeeuw, P. T. (January 2001), "On the origin of the O and B-type stars with high velocities. II. Runaway stars and pulsars ejected from the nearby young stellar groups", Astronomy and Astrophysics 365 (2): 49–77, doi:10.1051/0004-6361:20000014, Bibcode: 2001A&A...365...49H.
External links
- Jerzykiewicz, Mikolaj (1974). "Photometry of UW ARIETIS and V600 Herculis". Publications of the Astronomical Society of the Pacific 86 (509): 43. doi:10.1086/129556. Bibcode: 1974PASP...86...43J.
- HR 938
- Image 53 Arietis
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