Gamma1 Caeli
 Location of γ1 Caeli | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Caelum |
| Right ascension | 05h 04m 24.40218s[1] |
| Declination | −35° 28′ 58.7161″[1] |
| Apparent magnitude (V) | 4.55[2] |
| Characteristics | |
| Spectral type | K2.5IIIb + G8IV[3] |
| U−B color index | +1.20[4] |
| B−V color index | +1.20[4] |
| Astrometry | |
| Radial velocity (Rv) | 9.7 ± 2[5] km/s |
| Proper motion (μ) | RA: 126.17[1] mas/yr Dec.: −43.67[1] mas/yr |
| Parallax (π) | 17.99 ± 0.40 mas[1] |
| Distance | 181 ± 4 ly (56 ± 1 pc) |
| Absolute magnitude (MV) | +0.83[6] |
| Other designations | |
| Database references | |
| SIMBAD | data |
Gamma1 Caeli, Latinized from γ1 Caeli, is a double star in the constellation Caelum. It is approximately 185 light years from Earth. The brighter component is an orange K-type giant with an apparent magnitude of +4.55. The companion is an eighth magnitude star located 3.1 arcseconds away.
References
- ^ a b c d e van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
- ^ Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
- ^ Corbally, C. J. (1984). "Close visual binaries. I - MK classifications". The Astrophysical Journal Supplement Series. 55: 657. Bibcode:1984ApJS...55..657C. doi:10.1086/190973.
- ^ a b Johnson, H. L. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99. Bibcode:1966CoLPL...4...99J.
- ^ Wilson, Ralph Elmer (1953). "General catalogue of stellar radial velocities". Washington. Bibcode:1953GCRV..C......0W.
- ^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015.
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