CS Camelopardalis
 Location of CS Camelopardalis (circled) |
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| Observation data Epoch J2000 Equinox J2000 |
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|---|---|
| Constellation | Camelopardalis |
| Right ascension | 03h 29m 04.13196s |
| Declination | +59° 56′ 25.1970″ |
| Apparent magnitude (V) | 4.22(4.19 - 4.23) |
| Characteristics | |
| Spectral type | B9 Ia |
| U−B color index | −0.23 |
| B−V color index | +0.41 |
| R−I color index | +0.38 |
| Variable type | α Cyg |
| Astrometry | |
| Radial velocity (Rv) | −5.10 km/s |
| Proper motion (μ) |
RA: −2.24 mas/yr Dec.: −0.90 mas/yr |
| Parallax (π) | 0.76 ± 0.89mas |
| Distance | 975pc |
| Absolute magnitude (MV) | −7.10 |
| Details | |
| Mass | 19 M☉ |
| Radius | 85.7 R☉ |
| Luminosity | 75,900 L☉ |
| Surface gravity (log g) | 1.65 cgs |
| Temperature | 10,800 K |
| Rotational velocity (v sin i) | 30 km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
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Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
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CS Camelopardalis (CS Cam) is a binary star in reflection nebula VdB 14, in the constellation Camelopardalis.
It forms a group of stars known as the Camelopardalis R1 association, part of the Cam OB1 association. The near-identical supergiant CE Camelopardalis is located half a degree to the south.
The primary component, CS Camelopardalis A, is a blue-white B-type supergiant with a mean apparent magnitude of 4.21m. It is classified as an Alpha Cygni type variable star and its brightness varies from magnitude 4.19m to 4.23m. Its companion, CS Camelopardalis B, is a magnitude 8.7m star located 2.9 arcseconds from the primary.
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