15 Camelopardalis
File:DVCamLightCurve.png A Hipparcos light curve for DV Camelopardalis, adapted from Bakiş et al. (2011)[1] | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 05h 19m 27.85996s[2] |
| Declination | +58° 07′ 02.5203″[2] |
| Apparent magnitude (V) | 6.13[3] |
| Characteristics | |
| Spectral type | B5 V[4] |
| B−V color index | −0.031±0.005[3] |
| Variable type | Algol,[5] SPB[6] |
| Astrometry | |
| Radial velocity (Rv) | 6.7±3.7[3] km/s |
| Proper motion (μ) | RA: +5.558[2] mas/yr Dec.: −18.832[2] mas/yr |
| Parallax (π) | 3.1406±0.0571 mas[2] |
| Distance | 1,040 ± 20 ly (318 ± 6 pc) |
| Absolute magnitude (MV) | −0.74[3] |
| Orbit[5] | |
| Period (P) | 6.6784±0.0010 d |
| Eccentricity (e) | ~0.48 |
| Details | |
| Luminosity | 220.01[3] L☉ |
| Other designations | |
| 15 Cam, DV Cam, BD+57°874, HD 34233, HIP 24836, HR 1719, SAO 25125[7] | |
| Database references | |
| SIMBAD | data |
15 Camelopardalis is a triple star[5] 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.[3] It is a probable (99%) member of the Cas-Tau OB association.[5]
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.[6] 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.[5][8] The third component is a slowly pulsating B-type star.[6]
References
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- ^ a b c d e Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). Gaia DR2 record for this source at VizieR.
- ^ a b c d e f Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d e Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
