HD 93250

From Wikipedia, the free encyclopedia
Jump to: navigation, search
HD 93250

Observation data
Epoch J2000      Equinox J2000
Constellation Carina
Right ascension 10h 44m 45.026s[1]
Declination −59° 33′ 54.68″[1]
Apparent magnitude (V) 7.5[1]
Characteristics
Spectral type O4IIIfc:[2]
U−B color index  ?
B−V color index  ?
Variable type None
Astrometry
Radial velocity (Rv) 15 km/s
Proper motion (μ) RA: -8.15 mas/yr
Dec.: 2.86 mas/yr
Parallax (π) 0.53 ± 0.42[3] mas
Distance approx. 6,000 ly
(approx. 2,000 pc)
Details
Mass 86.83[4] M
Luminosity 1,038,978[4] L
Temperature 50,250[4] K
Metallicity ?
Rotation ?
Age ? years
Other designations
1E 104248-5918.0, HIC 52558, XMMU J104444.8-593354, ALS 1859, 2E 2317, HIP 52558, CD-58° 3537, GC 14791, CGO 246, GCRV 25947, PPM 339400, Cl Trumpler 16 180, SAO 238423, Cl Trumpler 14 101, TYC 8626-2075-1, CPC 20° 3140, GOS G287.51-00.54 01, CPD-58 2661, GSC 08626-02075.

HD 93250 is a highly luminous hot blue star in the Carina Nebula in the constellation Carina. It is around 86 times as massive and a million times as luminous as the Sun.[4]

References[edit]

  1. ^ a b c SIMBAD, HD 93250 (accessed 28 April 2015)
  2. ^ Sota, A.; Mainz Apellantiz, J.; Morrell, N.L; Barba, R.H; Walborn, N.R et al. (2014). ""The Galactic O-star spectroscopic survey (GOSSS). II. Bright southern stars".". Astronomy & Astrophysics 563. 
  3. ^ van Leeuwen, F. (2007). "Validation of the New Hipparcos Reduction". Astronomy and Astrophysics 474 (2): 653–64. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. 
  4. ^ a b c d Hohle, M. M.; Neuhäuser, R.; Schutz, B. F. (April 2010), "Masses and luminosities of O- and B-type stars and red supergiants", Astronomische Nachrichten 331 (4): 349, arXiv:1003.2335, Bibcode:2010AN....331..349H, doi:10.1002/asna.200911355