77 Ceti
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Cetus |
Right ascension | 02h 34m 42.62341s[1] |
Declination | −07° 51′ 34.0113″[1] |
Apparent magnitude (V) | 5.731[2] |
Characteristics | |
Spectral type | K2III[3] |
U−B color index | +1.68[4] |
B−V color index | +1.38[4] |
Astrometry | |
Radial velocity (Rv) | 24.9 ± 2[5] km/s |
Proper motion (μ) | RA: 57.16[1] mas/yr Dec.: -65.41[1] mas/yr |
Parallax (π) | 7.11 ± 0.43[1] mas |
Distance | 460 ± 30 ly (141 ± 9 pc) |
Details[6] | |
Luminosity | 187 L☉ |
Temperature | 4206 K |
Other designations | |
Database references | |
SIMBAD | data |
77 Ceti (77 Cet) is an orange giant star in the constellation Cetus. Its apparent magnitude is 5.731.[2]
References
- 1 2 3 4 5 van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. Bibcode:2007A&A...474..653V. arXiv:0708.1752 . doi:10.1051/0004-6361:20078357.
- 1 2 Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
- ↑ Houk, N.; Swift, C. (1999). "Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5". Michigan Spectral Survey. 5: 0. Bibcode:1999MSS...C05....0H.
- 1 2 Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV data. Bibcode:1986EgUBV........0M.
- ↑ Wilson, Ralph Elmer (1953). "General catalogue of stellar radial velocities". Washington. Bibcode:1953GCRV..C......0W.
- ↑ Chandler, Colin Orion; McDonald, Iain; Kane, Stephen R. (2016). "The Catalog of Earth-Like Exoplanet Survey Targets (Celesta): A Database of Habitable Zones Around Nearby Stars". The Astronomical Journal. 151 (3): 59. Bibcode:2016AJ....151...59C. arXiv:1510.05666 . doi:10.3847/0004-6256/151/3/59.
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