20 Ceti

20 Ceti
Observation data
Epoch J2000      Equinox J2000
Constellation Cetus
Right ascension 00h 53m 00.49452s[1]
Declination −01° 08′ 39.3317″[1]
Apparent magnitude (V) 4.76[2]
Characteristics
Spectral type M0III[3]
U−B color index +1.91[4]
B−V color index +1.56[4]
Astrometry
Radial velocity (Rv)16.22 ± 0.28[5] km/s
Proper motion (μ) RA: 6.99[1] mas/yr
Dec.: -15.66[1] mas/yr
Parallax (π)5.56 ± 0.22[1] mas
Distance590 ± 20 ly
(180 ± 7 pc)
Absolute magnitude (MV)-1.58[3]
Details
Radius53[6] R☉
Luminosity1044 ± 25[3] L☉
Temperature3800[3] K
Other designations
BD−01° 114, FK5 1022, HD 5112, HIP 4147, HR 248, SAO 129009
Database references
SIMBADdata

20 Ceti (20 Cet) is an red giant star in the constellation Cetus. Its apparent magnitude is 4.76.[2]

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. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Archived from the original on 2016-04-02.
  2. 1 2 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.
  3. 1 2 3 4 Groenewegen, M. A. T. (2012). "Infrared excess around nearby red giant branch stars and Reimers law". Astronomy & Astrophysics. 540: A32. Bibcode:2012A&A...540A..32G. doi:10.1051/0004-6361/201118287.
  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 "Compilation of Eggen's UBV data, transformed to UBV (unpublished)".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. ↑ Famaey, B.; Pourbaix, D.; Frankowski, A.; Van Eck, S.; Mayor, M.; Udry, S.; Jorissen, A. (2009). "Spectroscopic binaries among Hipparcos M giants". Astronomy and Astrophysics. 498 (2): 627. arXiv:0901.0934. Bibcode:2009A&A...498..627F. doi:10.1051/0004-6361/200810698.


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