15 Camelopardalis
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 05h 19m 27.85996s |
| Declination | +58° 07′ 02.5203″ |
| Apparent magnitude (V) | 6.13 |
| Characteristics | |
| Spectral type | B5 V |
| B−V color index | −0.031±0.005 |
| Variable type | Algol, SPB |
| Astrometry | |
| Radial velocity (Rv) | 6.7±3.7 km/s |
| Proper motion (μ) | RA: +5.558 mas/yr Dec.: −18.832 mas/yr |
| Parallax (π) | 3.1406±0.0571 mas |
| Distance | 1,040 ± 20 ly (318 ± 6 pc) |
| Absolute magnitude (MV) | −0.74 |
| Orbit | |
| Period (P) | 6.6784±0.0010 d |
| Eccentricity (e) | ~0.48 |
| Details | |
| Luminosity | 220.01 L☉ |
| Other designations | |
| 15 Cam, DV Cam, BD+57°874, HD 34233, HIP 24836, HR 1719, SAO 25125 | |
| Database references | |
| SIMBAD | data |
15 Camelopardalis is a triple star system in the northern circumpolar constellation of Camelopardalis. It has the variable star designation DV Camelopardalis; 15 Camelopardalis is the Flamsteed designation. This is just visible to the naked eye as a dim, blue-white hued star with a baseline apparent visual magnitude of 6.13. It is a probable (99%) member of the Cas-Tau OB association.
This system includes a double-lined spectroscopic binary with an orbital period of 6.7 days and a large eccentricity of around 0.48, plus a third component in a wider orbit. The close pair consist of a very slowly rotating helium-weak star plus an ordinary mid-B-type star with a more rapid rotation rate. When the Hipparcos data was analyzed, it was discovered that together they form an Algol-type eclipsing binary with a depth of about 0.2 magnitude. The third component is a slowly pulsating B-type star.