11 Camelopardalis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 05h 06m 08.4527s |
| Declination | +58° 58′ 20.54″ |
| Apparent magnitude (V) | 5.03 |
| Characteristics | |
| Spectral type | B2.5Ve |
| U−B color index | -0.69 |
| B−V color index | -0.08 |
| Variable type | Be star |
| Astrometry | |
| Radial velocity (Rv) | -11.0 km/s |
| Proper motion (μ) | RA: -6.16 mas/yr Dec.: -7.67 mas/yr |
| Parallax (π) | 4.86 ± 0.75 mas |
| Distance | approx. 700 ly (approx. 210 pc) |
| Absolute magnitude (MV) | -1.35 |
| Details | |
| Mass | 18 M☉ |
| Radius | 7 R☉ |
| Luminosity | 20,000 L☉ |
| Temperature | 10,000–30,000 K |
| Rotation | 131 Km/s 0,00741665 Year |
| Orbit | |
| Companion | CCDM 05062+5900 B STF4013B |
| Semi-major axis (a) | 8″ |
| Inclination (i) | 180.5° |
| Orbit | |
| Companion | CCDM 05062+5900 C STF4013C |
| Semi-major axis (a) | 173.4″ |
| Inclination (i) | 18° |
| Orbit | |
| Companion | CCDM 05062+5900 D STF4013D |
| Semi-major axis (a) | 16.2″ |
| Inclination (i) | 9° |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
11 Camelopardalis or BV Camelopardalis is a star system in the constellation Camelopardalis. It forms a double star with 12 Camelopardalis, which is only 3 arcminutes away.
11 Camelopardalis is a blue-white B-type main sequence dwarf with a mean apparent magnitude of +5.22. It is classified as a Gamma Cassiopeiae type variable star and its brightness varies by 0.07 magnitudes with a period of a few hours. It is approximately 671 light years from Earth.
Components
| NAME | Right ascension | Declination | Apparent magnitude (V) | Spectral type | Database references |
|---|---|---|---|---|---|
| BDS 2480 B (V* BM Cam) | 05h 06m 12.1373s | +59° 01' 16.823 | 6.089 | K0III | Simbad |
| BDS 2480 C (TYC 3746-1395-1) | 05h 06m 19.7356s | +59° 04' 04.176 | 10.1 | Simbad |
References
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