SX Arietis
Star SX Arietis |
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AladinLite | |||||||||||||||||
Observation dates equinox : J2000.0 , epoch : J2000.0 |
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Constellation | Aries | ||||||||||||||||
Right ascension | 03 h 12 m 14.25 s | ||||||||||||||||
declination | + 27 ° 15 ′ 25.1 ″ | ||||||||||||||||
Apparent brightness | 5.76 (5.75-5.81) mag | ||||||||||||||||
Typing | |||||||||||||||||
B − V color index | −0.12 | ||||||||||||||||
U − B color index | −0.42 | ||||||||||||||||
Spectral class | B9pSi | ||||||||||||||||
Variable star type | SXARI | ||||||||||||||||
Astrometry | |||||||||||||||||
Radial velocity | (16) km / s | ||||||||||||||||
parallax | (8.04 ± 0.17) mas | ||||||||||||||||
distance | (405 ± 10) ly 124 pc |
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Proper movement | |||||||||||||||||
Rec. Share: | (+12.04 ± 0.35) mas / a | ||||||||||||||||
Dec. portion: | (−18.79 ± 0.27) mas / a | ||||||||||||||||
Physical Properties | |||||||||||||||||
radius | (2.8 ± 0.4) R ☉ | ||||||||||||||||
Effective temperature | (12800 ± 300) K. | ||||||||||||||||
Other names and catalog entries |
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SX Arietis is a spectral class B star at a distance of about 400 light years . It is the prototype of the SX Arietis stars , which belong to the rotation-variable stars . Furthermore, the star is one of the chemically peculiar Bp stars .
Web links
Individual evidence
- ↑ a b c d e f g 56 Ari. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed September 8, 2018 .
- ↑ a b c SX Ari. In: VSX. AAVSO, accessed September 8, 2018 .
- ↑ a b D. Shulyak et al .: The Lorentz force in atmospheres of chemically peculiar stars: 56 Arietis . In: Astronomy & Astrophysics . 509, Jan 2010, p. A28. bibcode : 2010A & A ... 509A..28S . doi : 10.1051 / 0004-6361 / 200912615 .