Phi3 Ceti
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Cetus[1] |
| Right ascension | 00h 56m 01.48867s[2] |
| Declination | −11° 15′ 59.4988″[2] |
| Apparent magnitude (V) | 5.31[3] |
| Characteristics | |
| Spectral type | K5 III[4] |
| B−V color index | +1.52[3] |
| Astrometry | |
| Radial velocity (Rv) | −25.48±0.38[5] km/s |
| Proper motion (μ) | RA: −27.758 mas/yr[2] Dec.: −7.484 mas/yr[2] |
| Parallax (π) | 6.2394±0.107 mas[2] |
| Distance | 523 ± 9 ly (160 ± 3 pc) |
| Absolute magnitude (MV) | −0.78[1] |
| Details | |
| Mass | 1.4[6] M☉ |
| Radius | 44.33+0.76 −2.94[5] R☉ |
| Luminosity | 441±21[5] L☉ |
| Surface gravity (log g) | 1.67[7] cgs |
| Temperature | 3,974+139 −34[5] K |
| Metallicity [Fe/H] | −0.31[7] dex |
| Rotational velocity (v sin i) | 1.0[6] km/s |
| Other designations | |
| φ3 Ceti, 22 Cet, BD−12°162, HD 5437, HIP 4371, HR 267, SAO 147519[8] | |
| Database references | |
| SIMBAD | data |
Phi3 Ceti is a solitary,[9] orange-hued star in the equatorial constellation of Cetus. It is faintly visible to the naked eye with an apparent visual magnitude of 5.31.[3] Based upon an annual parallax shift of 6.24 mas as seen from Earth,[2] it is located approximately 523 light-years (160 pc) from the Sun, give or take 9 light years. The star is drifting closer with a radial velocity of −25.5 km/s.[5]
This is an evolved K-type giant star with a stellar classification of K5 III.[4] It has about 1.4[6] times the mass and 44[5] times the radius of the Sun. The star radiates 441 times the solar luminosity from its photosphere at an effective temperature of 3,974 K.[5]
References
- ^ a b 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 XHIP record for this object at VizieR.
- ^ a b c d e Vallenari, A.; et al. (Gaia collaboration) (2023), "Gaia Data Release 3. Summary of the content and survey properties", Astronomy and Astrophysics, 674: A1, arXiv:2208.00211, Bibcode:2023A&A...674A...1G, doi:10.1051/0004-6361/202243940, S2CID 244398875 Gaia DR3 record for this source at VizieR.
- ^ a b c Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99): 99, Bibcode:1966CoLPL...4...99J.
- ^ a b Houk, N.; Swift, C. (1999), "Michigan catalogue of two-dimensional spectral types for the HD Stars", Michigan Spectral Survey, 5, Ann Arbor, Michigan: Department of Astronomy, University of Michigan, Bibcode:1999MSS...C05....0H.
- ^ a b c d e f g Brown, A. G. A.; et al. (Gaia collaboration) (August 2018), "Gaia Data Release 2: Summary of the contents and survey properties", Astronomy & Astrophysics, 616, A1, arXiv:1804.09365, Bibcode:2018A&A...616A...1G, doi:10.1051/0004-6361/201833051 Gaia DR2 record for this source at VizieR.
- ^ a b c Melo, C. H. F.; et al. (August 2005), "On the nature of lithium-rich giant stars. Constraints from beryllium abundances", Astronomy and Astrophysics, 439 (1): 227–235, arXiv:astro-ph/0504133, Bibcode:2005A&A...439..227M, doi:10.1051/0004-6361:20041805, S2CID 10580797.
- ^ a b Soubiran, C.; et al. (June 2010), "The PASTEL catalogue of stellar parameters", Astronomy and Astrophysics, 515: A111, arXiv:1004.1069, Bibcode:2010A&A...515A.111S, doi:10.1051/0004-6361/201014247, S2CID 118362423.
- ^ "phi03 Cet", SIMBAD, Centre de données astronomiques de Strasbourg, retrieved 2017-04-22
- ^ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.