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Star in the constellation Perseus
Omega Persei (ω Persei) is a solitary,[ 7] star in the northern constellation of Perseus . The star is faintly visible to the naked eye with an apparent visual magnitude of +4.6.[ 2] parallax shift of 11.32 mas as seen from the Earth,[ 1] light years from the Sun .
ω Persei has the traditional name Gorgonea Quarta , being the fourth member of the quartet called the Gorgonea in reference to the Gorgons from the legend of Perseus .[ 8]
This is an evolved K-type giant star with a stellar classification of K0 III.[ 2] red clump star that is generating energy via helium fusion at its core.[ 3] [ 2] mass of the Sun and has expanded to about 19[ 5] Sun's radius . It is radiating 144.5 times the Sun's luminosity from its photosphere at an effective temperature of 4,586 K.[ 2]
^ a b c d e f 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 . ^ a b c d e f g h i j k l Luck, R. Earle (September 2015), "Abundances in the Local Region. I. G and K Giants", The Astronomical Journal , 150 (3): 23, arXiv :1507.01466 Bibcode :2015AJ....150...88L , doi :10.1088/0004-6256/150/3/88 , S2CID 118505114 , 88. ^ a b Alves, David R. (August 2000), "K-Band Calibration of the Red Clump Luminosity", The Astrophysical Journal , 539 (2): 732–741, arXiv :astro-ph/0003329 Bibcode :2000ApJ...539..732A , doi :10.1086/309278 , S2CID 16673121 . ^ 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 . ^ a b c d Massarotti, Alessandro; et al. (January 2008), "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity", The Astronomical Journal , 135 (1): 209–231, Bibcode :2008AJ....135..209M , doi :10.1088/0004-6256/135/1/209 S2CID 121883397 . ^ "ome Per" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2017-06-19 .^ 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 . ^ Allen, Richard Hinckley (1899), Star-names and their meanings
