1 Cancri

K-type giant star in the constellation Cancer 1 Cancri J2000 Cancer 07 56 59.45262 +15 47 25.0019 5.97 K3− III 1.285 0.007 +13.55 0.12 −26.731 −42.7591 6.9810 0.0694 0.03 1.1 18.7 199 4,231 2.03 −0.01 1 Cnc +16°1590 1208 64960 38848 3095 97399 1+Cnc 1 Cancri is a single star in the zodiac constellation of Cancer, positioned near the border with Gemini at a distance of around 467 light years from the Sun. It is barely visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude of 5.97. The object is moving further from the Earth with a heliocentric radial velocity of +14 km/s. This is an evolved giant star with a stellar classification of K3− III, having exhausted the hydrogen at its core and expanded. It is specified as a spectral standard for that type. The angular diameter of the star measured from a lunar occultation is 2.1 0.6 mas, which, at its estimated distance, equates to a physical radius of about 19 times the radius of the Sun. It is radiating 199 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,231 K commas. References 1 Cnc 2019-02-22 666735780843072256 . Anders F. Khalatyan A. Chiappini C. Queiroz A. B. Santiago B. X. Jordi C. Girardi L. Brown A. G. A. Matijevič G. Monari G. Cantat-Gaudin T. Weiler M. Khan S. Miglio A. Carrillo I. Romero-Gómez M. Minchev I. de Jong R. S. Antoja T. Ramos P. Steinmetz M. Enke H. Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18 Astronomy & Astrophysics August 2019 628 A94 10.1051/0004-6361/201935765 0004-6361 2019A&A...628A..94A 1904.11302 free . 1 Stassun Keivan G. Oelkers Ryan J. Pepper Joshua Paegert Martin De Lee Nathan Torres Guillermo Latham David W. Charpinet Stéphane Dressing Courtney D. Huber Daniel Kane Stephen R. Lépine Sébastien Mann Andrew Muirhead Philip S. Rojas-Ayala Bárbara Silvotti Roberto Fleming Scott W. Levine Al Plavchan Peter The TESS Input Catalog and Candidate Target List The Astronomical Journal September 2018 156 3 102 10.3847/1538-3881/aad050 1706.00495 2018AJ....156..102S 0004-6256 free . 1 Sprague Dani Culhane Connor Kounkel Marina Olney Richard Covey K. R. Hutchinson Brian Lingg Ryan Stassun Keivan G. Román-Zúñiga Carlos G. Roman-Lopes Alexandre Nidever David Beaton Rachael L. Borissova Jura Stutz Amelia Stringfellow Guy S. Ramírez Karla Peña Ramírez-Preciado Valeria Hernández Jesús Kim Jinyoung Serena Lane Richard R. APOGEE Net: An Expanded Spectral Model of Both Low-mass and High-mass Stars The Astronomical Journal 8 March 2022 163 4 152 0004-6256 1538-3881 10.3847/1538-3881/ac4de7 2022AJ....163..152S 2201.03661 free XHIP: An extended hipparcos compilation Anderson E. Francis Ch. Astronomy Letters 1108.4971 38 5 331 2012 2012AstL...38..331A 10.1134/S1063773712050015 119257644 . 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 0806.2878 2008MNRAS.389..869E 14878976 . 1 Richichi A. Percheron I. Khristoforova M. CHARM2: An updated Catalog of High Angular Resolution Measurements Astronomy and Astrophysics 431 2 773–777 February 2005 10.1051/0004-6361:20042039 2005A&A...431..773R free The Perkins catalog of revised MK types for the cooler stars Astrophysical Journal Supplement Series Keenan Philip C. McNeil Raymond C. 71 245 1989 . 1989ApJS...71..245K 10.1086/191373 Astronomy Stars Outer space Category:K3III stars Category:Cancer (constellation) Category:Durchmusterung objects Cancri, 01 064960 038848 3095 Category:Population I stars