46 Ceti

46 Ceti
Observation data
Epoch J2000      Equinox J2000
Constellation Cetus
Right ascension 01h 25m 37.23517s[1]
Declination −14° 35′ 55.6670″[1]
Apparent magnitude (V) 4.907[2]
Characteristics
Spectral type K2III[3]
U−B color index +1.26[4]
B−V color index +1.22[4]
Astrometry
Radial velocity (Rv)-22.6 ± 0.7[5] km/s
Proper motion (μ) RA: 42.94[1] mas/yr
Dec.: -17.26[1] mas/yr
Parallax (π)11.34 ± 0.83[1] mas
Distance290 ± 20 ly
(88 ± 6 pc)
Details
Mass1.38[6] M☉
Radius19[7] R☉
Luminosity132[6] L☉
Surface gravity (log g)2.2[7] cgs
Temperature4316 ± 89[6] K
Metallicity [Fe/H]-0.32[7] dex
Age4.17[6] Gyr
Other designations
BD−15° 266, HD 8705, HIP 6670, HR 412, SAO 147803
Database references
SIMBADdata

46 Ceti (46 Cet) is an orange giant star in the constellation Cetus. Its apparent magnitude is 4.90.

References

  1. 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 Freely accessible. doi:10.1051/0004-6361:20078357.
  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.
  3. ↑ 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.
  4. 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 "Compilation of Eggen's UBV data, transformed to UBV (unpublished)".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.
  5. ↑ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. Bibcode:2006AstL...32..759G. arXiv:1606.08053 Freely accessible. doi:10.1134/S1063773706110065.
  6. 1 2 3 4 Luck, R. Earle (2015). "Abundances in the Local Region. I. G and K Giants". The Astronomical Journal. 150 (3): 88. Bibcode:2015AJ....150...88L. arXiv:1507.01466 Freely accessible. doi:10.1088/0004-6256/150/3/88.
  7. 1 2 3 Massarotti, Alessandro; Latham, David W.; Stefanik, Robert P.; Fogel, Jeffrey (2008). "Rotational and Radial Velocities for a Sample of 761 Hipparcos Giants and the Role of Binarity". The Astronomical Journal. 135: 209. Bibcode:2008AJ....135..209M. doi:10.1088/0004-6256/135/1/209.


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