HD 1185

From Wikipedia, the free encyclopedia
Jump to: navigation, search
HD 1185
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 00h 16m 21.53s[1]
Declination +43° 35′ 42.2″[1]
Apparent magnitude (V) 6.15[2]
Characteristics
Spectral type A2Vsp...[2]
B−V color index 0.05[2]
Astrometry
Radial velocity (Rv) 3.00[2] km/s
Proper motion (μ) RA: 35.12 ± 0.51[1] mas/yr
Dec.: -23.14 ± 0.31[1] mas/yr
Parallax (π) 9.39 ± 0.61[1] mas
Distance 350 ± 20 ly
(106 ± 7 pc)
Absolute magnitude (MV) 6.2
Other designations
HD 1185, BD+42° 41, HIP 1302, SAO 36221, HR 56.[2]
Database references
SIMBAD data
Database references
SIMBAD data

HD 1185 is a binary star[3] in the constellation Andromeda. The primary, with an apparent magnitude of 6.15, is a white main-sequence star of spectral type A2Vsp,[2] indicating peculiarities in the star's spectrum. The secondary, which is not visible to the naked eye at an apparent magnitude of 10.21, is also an A-type star.[4]

References[edit]

  1. ^ a b c d e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. ^ a b c d e f "HR 56". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 15 February 2014. 
  3. ^ McAlister, H. A.; Hartkopf, W. I.; Sowell, J. R.; Dombrowski, E. G.; Franz, O. G. (1989). "ICCD speckle observations of binary stars. IV - Measurements during 1986-1988 from the Kitt Peak 4 M telescope". The Astronomical Journal 97: 510. doi:10.1086/115001.  edit
  4. ^ "BD+42 41B". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 15 February 2014.