BN Camelopardalis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Camelopardalis
|
| Right ascension | 05h 12m 22.43769s[2] |
| Declination | +73° 56′ 48.03820″[2] |
| Apparent magnitude (V) | 5.49[3] (5.34 to 5.58)[4] |
| Characteristics | |
| Spectral type | B9.5VpSi[5] |
| B−V color index | −0.108±0.003[3] |
| Variable type | α2 CVn[4] |
| Absolute magnitude (MV) | +0.13[3] |
| Details | |
Rotational velocity (v sin i) | 23[8] km/s |
| Database references | |
| SIMBAD | data |
BN Camelopardalis is a suspected
light years from the Sun based on parallax,[2] and is drifting further away with a radial velocity of +9 km/s.[3]
The visible component is a weakly magnetic[11] chemically peculiar star[12][13] with a stellar classification of B9.5VpSi,[5] matching a B-type main-sequence star with an anomalous abundance of silicon. It is a variable star[14] that ranges in brightness from 5.34 down to 5.58.[4] Samus et al. (2017) have it categorized as an α2 Canum Venaticorum variable with a period of 2.7347 days,[4] while Adelman and Sutton (2007) found a period of 2.73501 days.[12] The star has three times the mass and radius of the Sun and is radiating 110 times the Sun's luminosity from its photosphere at an effective temperature of 11,561 K.[7][6]
References
- S2CID 122538111.
- ^ .
- ^ S2CID 119257644.
- ^ S2CID 125853869.
- ^ doi:10.1086/192182.
- ^ S2CID 119215348.
- ^ Bibcode:1998A&A...334..181N.
- S2CID 14070763
- ^ "BN Cam". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-08-14.
- S2CID 14878976.
- S2CID 54850596.
- ^ doi:10.1086/520627.
- ^ Watson, Christopher (4 January 2010). "BN Camelopardalis". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 26 May 2015.
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