2 Camelopardalis

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2 Camelopardalis
Observation data
Epoch J2000      Equinox J2000
Constellation Camelopardalis
Right ascension 04h 39m 58.0688s
Declination +53° 28′ 22.874″
Apparent magnitude (V) 5.376
Characteristics
Spectral type A8V
B−V color index 0.31
Astrometry
Radial velocity (Rv) 20.10 km/s
Proper motion (μ) RA: 34.51 mas/yr
Dec.: -84.70 mas/yr
Parallax (π) 22.49 ± 4.69 mas
Distance approx. 150 ly
(approx. 44 pc)
Orbit
Companion WDS J04400+5328B
Orbit[1]
Companion WDS J04400+5328C
Period (P) 737.2 yr
Semi-major axis (a) 2.07"
Eccentricity (e) 0.320
Inclination (i) 121.1°
Longitude of the node (Ω) 285.6°
Periastron epoch (T) 1967.6
Orbit
Companion WDS J04400+5328D
Other designations
BD+53° 794, HIP 21730, HR 1466, SAO 24744, HD 29316.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

2 Camelopardalis is a trinary star system[2] in the constellation Camelopardalis located approximately 44.46 parsecs (145.0 ly) distant. With a combined apparent magnitude of 5.38, the system can easily be seen with the naked eye under good conditions. The primary-secondary pair, of which the primary is a blue-white main-sequence star,[3] is separated from the tertiary by approximately an arc second,[4][5] making it very difficult to resolve. A nearby star is likely to be a member of the system as well, bringing the total number of stars to four.[2]

References[edit]

  1. ^ Mason et al.; Hartkopf, William I.; Wycoff, Gary L.; Holdenried, Ellis R. (2006). "Speckle Interferometry at the US Naval Observatory. XII.". The Astronomical Journal 132 (5): 2219–2230. Bibcode:2006AJ....132.2219M. doi:10.1086/508231. 
  2. ^ a b Heintz, W. D. (1996). "A Study of Multiple-Star Systems". The Astronomical Journal 111: 408. doi:10.1086/117792.  edit
  3. ^ "2 Camelopardalis". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 11 June 2014. 
  4. ^ "STF 566AB". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 11 June 2014. 
  5. ^ "STF 566C". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 11 June 2014.