BN Camelopardalis

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BN Camelopardalis
Observation data
Epoch J2000      Equinox J2000
Constellation Camelopardalis
Right ascension 05h 12m 22.45292s
Declination +73° 56′ 48.0423″
Apparent magnitude (V) 5.45
Characteristics
Spectral type B9.5pSi
U−B color index –0.35
B−V color index –0.13
Astrometry
Radial velocity (Rv) 9.3±2 km/s
Proper motion (μ) RA: +1.45±0.33 mas/yr
Dec.: –26.90±0.46 mas/yr
Parallax (π) 8.63 ± 0.47 mas
Distance 380 ± 20 ly
(116 ± 6 pc)
Absolute magnitude (MV) +0.05[1]
Details
Mass 3.08 ± 0.13[1] M
Radius 2.9 ± 0.4[1] R
Luminosity 126[1] L
Surface gravity (log g) 4.15 ± 0.11[1] cgs
Temperature 11,455[1] K
Rotation 2.73332 days[1]
Other designations
BD+73 274, FK5 2387, HD 32650, HIP 24254, HR 1643, SAO 5455.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

BN Camelopardalis is a Alpha² Canum Venaticorum variable star in the constellation Camelopardalis. It has an apparent magnitude of 5.3, varying by 0.05 of a magnitude.[2]

References[edit]

  1. ^ a b c d e f g North, P. (June 1998), "Do SI stars undergo any rotational braking?", Astronomy and Astrophysics 334: 181–187, arXiv:astro-ph/9802286, Bibcode:1998A&A...334..181N 
  2. ^ Watson, Christopher (4 January 2010). "BN Camelopardalis". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 26 May 2015.