2 Camelopardalis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 04h 39m 58.0688s |
| Declination | +53° 28′ 22.874″ |
| Apparent magnitude (V) | 5.376 |
| Characteristics | |
| Spectral type | A8V |
| B−V color index | 0.31 |
| Astrometry | |
| Radial velocity (Rv) | 20.10 km/s |
| Proper motion (μ) | RA: 34.51 mas/yr Dec.: -84.70 mas/yr |
| Parallax (π) | 22.49 ± 4.69 mas |
| Distance | approx. 150 ly (approx. 44 pc) |
| Orbit | |
| Companion | WDS J04400+5328B |
| Orbit[1] | |
| Companion | WDS J04400+5328C |
| Period (P) | 737.2 yr |
| Semi-major axis (a) | 2.07" |
| Eccentricity (e) | 0.320 |
| Inclination (i) | 121.1° |
| Longitude of the node (Ω) | 285.6° |
| Periastron epoch (T) | 1967.6 |
| Orbit | |
| Companion | WDS J04400+5328D |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
2 Camelopardalis is a trinary star system[2] in the constellation Camelopardalis located approximately 44.46 parsecs (145.0 ly) distant. With a combined apparent magnitude of 5.38, the system can easily be seen with the naked eye under good conditions. The primary-secondary pair, of which the primary is a blue-white main-sequence star,[3] is separated from the tertiary by approximately an arc second,[4][5] making it very difficult to resolve. A nearby star is likely to be a member of the system as well, bringing the total number of stars to four.[2]
References
- ↑ Mason; Hartkopf, William I.; Wycoff, Gary L.; Holdenried, Ellis R.; et al. (2006). "Speckle Interferometry at the US Naval Observatory. XII.". The Astronomical Journal 132 (5): 2219–2230. Bibcode:2006AJ....132.2219M. doi:10.1086/508231.
- 1 2 Heintz, W. D. (1996). "A Study of Multiple-Star Systems". The Astronomical Journal 111: 408. Bibcode:1996AJ....111..408H. doi:10.1086/117792.
- ↑ "2 Camelopardalis". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 11 June 2014.
- ↑ "STF 566AB". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 11 June 2014.
- ↑ "STF 566C". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 11 June 2014.
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