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Psi Cassiopeiae

From Wikipedia, the free encyclopedia

Psi Cassiopeiae

Map of the Bayer-designated stars in Cassiopeia. Psi Cassiopeiae is circled.
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Cassiopeia
Right ascension 01h 25m 56.02238s[1]
Declination +68° 07′ 48.0460″[1]
Apparent magnitude (V) +4.72[2]
Characteristics
Spectral type K0 III-IIIb CN0.5[3]
U−B color index +0.94
B−V color index +1.051[4]
Astrometry
Radial velocity (Rv)−12.7±0.3[2] km/s
Proper motion (μ) RA: +75.50±0.18[1] mas/yr
Dec.: +26.93±0.16[1] mas/yr
Parallax (π)16.72 ± 0.18 mas[1]
Distance195 ± 2 ly
(59.8 ± 0.6 pc)
Absolute magnitude (MV)0.869[4]
Details
ψ Cas A
Radius12[5] R☉
Luminosity50[6] L☉
Surface gravity (log g)2.74[7] cgs
Temperature4,952[6] K
Metallicity [Fe/H]−0.13[7] dex
Other designations
ψ Cas, 36 Cas, BD+67° 123, FK5 46, HD 8491, HIP 6692, HR 399, SAO 11751, ADS 1129, CCDM J01259+6808, WDS J01259+6808A[8]
Database references
SIMBADdata

Psi Cassiopeiae (ψ Cassiopeiae) is a binary star[9] system in the northern constellation of Cassiopeia.

The primary component, ψ Cassiopeiae A, is an orange K-type giant with an apparent magnitude of +5.0;[10][11] it is a double star, designated CCDM J01259+6808AB,[12] with a fourteenth magnitude star (component B) located 3 arcseconds from the primary. Located about 25 arcseconds distant there is a 9.8 magnitude optical companion CCDM J01259+6808CD, designated ψ Cassiopeiae B in older star catalogues,[10] which is itself another double;[10][13] CD comprises a 9.4 magnitude component C and a 10 magnitude component D.[14]

References

  1. ^ a b c d e van Leeuwen, F. (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, S2CID 18759600.
  2. ^ a b Gontcharov, G. A. (2006), "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system", Astronomy Letters, 32 (11): 759–771, arXiv:1606.08053, Bibcode:2006AstL...32..759G, doi:10.1134/S1063773706110065, S2CID 119231169.
  3. ^ Keenan, Philip C.; McNeil, Raymond C. (1989), "The Perkins catalog of revised MK types for the cooler stars", Astrophysical Journal Supplement Series, 71: 245, Bibcode:1989ApJS...71..245K, doi:10.1086/191373, S2CID 123149047.
  4. ^ a b Soubiran, C.; et al. (2008), "Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants", Astronomy and Astrophysics, 480 (1): 91–101, arXiv:0712.1370, Bibcode:2008A&A...480...91S, doi:10.1051/0004-6361:20078788, S2CID 16602121.
  5. ^ Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics, 367 (Third ed.): 521–524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451, S2CID 425754.
  6. ^ a b McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x, S2CID 118665352.
  7. ^ 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.
  8. ^ "psi Cas". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-08-29.
  9. ^ 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.
  10. ^ a b c Norton, Arthur P. (1973), Norton's Star Atlas, Gall & Inglis, p. 118, ISBN 0-85248-900-5
  11. ^ Vizier, retrieved 2009-04-13
  12. ^ "* psi Cas". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-04-13.
  13. ^ "BD+67 124". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-04-13.
  14. ^ VizieR Detailed Page, retrieved 2009-04-13
This page was last edited on 25 December 2023, at 14:30
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