3 Camelopardalis
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 04h 39m 54.68s |
| Declination | +53° 04′ 46.327″ |
| Apparent magnitude (V) | 5.085 |
| Characteristics | |
| Spectral type | K0III |
| U−B color index | 0.89 |
| B−V color index | 1.07 |
| Variable type | Cepheid variable NSV 1681 |
| Astrometry | |
| Radial velocity (Rv) | -40.5 km/s |
| Proper motion (μ) | RA: -7.38 mas/yr Dec.: -15.95 mas/yr |
| Parallax (π) | 6.58 ± 0.78 mas |
| Distance | approx. 500 ly (approx. 150 pc) |
| Absolute magnitude (MV) | 6.166[citation needed] |
| Details | |
| Mass | 0,8[citation needed] M☉ |
| Radius | 0,9[citation needed] R☉ |
| Luminosity | 0,4[citation needed] L☉ |
| Temperature | 3,500–5,000 K |
| Rotation | < 17 Km/s 0,0146962 Year |
| Orbit | |
| Companion | CCDM 04399+5305 B BU 1043 |
| Period (P) | 0,33128 yr |
| Semi-major axis (a) | 3.8" |
| Inclination (i) | 297° |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
3 Camelopardalis is a spectroscopic binary in the constellation Camelopardalis. It is approximately 496 light years from Earth.
The primary component, 3 Camelopardalis A, is an orange K-type giant with a mean apparent magnitude of +5.07. It is a Cepheid variable star and its brightness varies from magnitude +5.05 to +5.10. The binary star revolves around its common centre of mass once every 121 days.
References
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