1 Cassiopeiae

Star in the constellation Cassiopeia Cassiopeia constellation map.svg center 280 right Red circle.svg 10 1 Cassiopeiae 785 485 Location of 1 Cassiopeiae (circled in red) J2000.0 Cassiopeia 23 06 36.818 +59 25 11.14 +4.84 B0.5 III −0.060 0.004 −0.87 −9.1 0.9 6.94 0.14 −1.95 0.14 2.89 0.13 −2.91 13.1 10.2 18,200 27,200 −0.40 3.98 31 5.7 0.1 1 Cas +58°2545 1201 218376 114104 8797 35147 1+Cas 1 Cassiopeiae is a single star in the northern constellation of Cassiopeia, located around 1,130 light years from the Sun. It is visible to the naked eye as a faint, blue-white hued star with an apparent visual magnitude of +4.84. This object is moving closer to the Earth with a heliocentric radial velocity of −9 km/s. The stellar classification of 1 Cassiopeiae is B0.5 III, matching an evolved B-type giant star. It is 5.7 million years old with a projected rotational velocity of 31. The star has 13.1 times the mass of the Sun and 10.2 times the Sun's radius. It is radiating 18,200 times the Sun's luminosity from its photosphere at an effective temperature of 27,200 K. References 1 Cas 2019-04-03 XHIP: An extended hipparcos compilation Anderson E. Francis Ch. Astronomy Letters 38 5 331 2012 2012AstL...38..331A 10.1134/S1063773712050015 1108.4971 119257644 Fitzpatrick E. L. Massa D. Determining the Physical Properties of the B Stars. II. Calibration of Synthetic Photometry The Astronomical Journal 129 3 1642–1662 10.1086/427855 2005AJ....129.1642F astro-ph/0412542 March 2005 119512018 1 Underhill A. B. Divan L. Prevot-Burnichon M.-L. Doazan V. Effective temperatures, angular diameters, distances and linear radii for 160 O and B stars Monthly Notices of the Royal Astronomical Society 189 3 601–605 1979MNRAS.189..601U November 1979 10.1093/mnras/189.3.601 free Validation of the new Hipparcos reduction van Leeuwen F. Astronomy and Astrophysics 474 2 653–664 2007 0708.1752 2007A&A...474..653V 10.1051/0004-6361:20078357 free 18759600 Vizier catalog entry 1 Tetzlaff N. Neuhäuser R. Hohle M. M. A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun Monthly Notices of the Royal Astronomical Society 410 1 190–200 January 2011 10.1111/j.1365-2966.2010.17434.x free 2011MNRAS.410..190T 1007.4883 118629873 1 Zorec J. Cidale L. Arias M. L. Frémat Y. Muratore M. F. Torres A. F. Martayan C. Martayan C. Fundamental parameters of B supergiants from the BCD system. I. Calibration of the (λ_1, D) parameters into Teff Astronomy and Astrophysics 501 1 297–320 July 2009 10.1051/0004-6361/200811147 free 2009A&A...501..297Z 0903.5134 14969137 Gies Douglas R. Lambert David L. Carbon, nitrogen, and oxygen abundances in early B-type stars Astrophysical Journal, Part 1 387 673–700 March 1992 10.1086/171116 1992ApJ...387..673G free Eggleton P. P. Tokovinin A. A. A catalogue of multiplicity among bright stellar systems Monthly Notices of the Royal Astronomical Society 389 2 869–879 September 2008 10.1111/j.1365-2966.2008.13596.x free 2008MNRAS.389..869E 0806.2878 14878976 Simón-Díaz S. Godart M. Castro N. Herrero A. Aerts C. Puls J. Telting J. Grassitelli L. 1 The IACOB project . III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars Astronomy & Astrophysics 597 A22 17 January 2017 10.1051/0004-6361/201628541 free 2017A&A...597A..22S 1608.05508 3478126 Category:B-type giants Category:Cassiopeia (constellation) BD+58 2545 Cassiopeiae, 01 218376 114104 8797