Alpha Sculptoris

from Wikipedia, the free encyclopedia
Star
α Sculptoris
AladinLite
Observation
dates equinoxJ2000.0 , epoch : J2000.0
Constellation sculptor
Right ascension 00 h 58 m 36.36 s
declination −29 ° 21 ′ 26.8 ″
Apparent brightness 4.27 likes
Typing
B − V color index −0.18 
U − B color index −0.57 
R − I index −0.13 
Spectral class B7 IIIp
Variable star type SXARI 
Astrometry
Radial velocity (+9.6 ± 0.6) km / s
parallax (4.20 ± 0.18)  mas
distance 780  ly
240  pc
Visual absolute brightness M vis (−2.31 ± 0.38) mag
Proper movement 
Rec. Share: (+20.13 ± 0.20)  mas / a
Dec. portion: (+5.31 ± 0.15)  mas / a
Physical Properties
Dimensions 5.0  M
radius R
Luminosity

1500  L

Effective temperature 13600  K
Age 90 mill.  A
Other names
and catalog entries
Bayer name α Sculptoris
Cordoba Survey CD −30 ° 297
Bright Star Catalog HR 280 [1]
Henry Draper Catalog HD 5737 [2]
Hipparcos catalog HIP 4577 [3]
SAO catalog SAO 166716 [4]
Tycho catalog TYC 6424-2270-1 [5]
2MASS catalog 2MASS J00583635-2921266 [6]
Other names FK5 35

α Sculptoris is the brightest star in the constellation Sculptor . The star is a blue giant and is about 800  light years away . The star is chemically peculiar as a so-called Bp star . He is also one of the rotationally variable SX Arietis stars .

See also

Individual evidence

  1. a b c d e f g h i alf Scl. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed on November 12, 2018 .
  2. a b alf Scl. In: VSX. AAVSO, accessed November 12, 2018 .
  3. a b c d O. Kochukhov, S. Bagnulo: Evolutionary state of magnetic chemically peculiar stars . In: Astronomy & Astrophysics . 450, No. 2, 2006, p. 763. arxiv : astro-ph / 0601461 . bibcode : 2006A & A ... 450..763K . doi : 10.1051 / 0004-6361: 20054596 .
  4. a b Alpha Scl. Jim Kaler, accessed November 12, 2018 .
  5. C. Saffe, H. Levato: On the nature of sn stars. I. A detailed abundance study . In: Astronomy & Astrophysics . 562, 2014, p. A128. arxiv : 1401.5764 . bibcode : 2014A & A ... 562A.128S . doi : 10.1051 / 0004-6361 / 201322091 .