Orange-hued giant star in the constellation Cancer
60 Cancri is astar in thezodiac constellation Cancer , located about 850light-years away from the Sun. It is visible to the naked eye as a faint, orange-hued star with anapparent visual magnitude of +5.44.[ 2] ecliptic , so it is subject to the occasionaloccultation by theMoon .[ 8] radial velocity of +25 km/s.[ 1]
This is an aginggiant star with astellar classification of K5 III,[ 3] core andevolved off themain sequence . It is a suspectedvariable star of unknown type.[ 9] interferometry -measuredangular diameter of the primary component, after correcting forlimb darkening , is± 0.02 mas [ 10] radius of the Sun .[ 11] mass of the Sun .[ 5] Sun's luminosity [ 6] photosphere at aneffective temperature of 4,150 K.[ 5]
^a b c d e f g Brown, A. G. A. ; et al. (Gaia collaboration ) (August 2018)."Gaia Data Release 2: Summary of the contents and survey properties" .Astronomy & Astrophysics 616 . A1.arXiv :1804.09365 Bibcode :2018A&A...616A...1G doi :10.1051/0004-6361/201833051 Gaia DR2 record for this source atVizieR .^a b c d Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation",Astronomy Letters ,38 (5): 331,arXiv :1108.4971 Bibcode :2012AstL...38..331A ,doi :10.1134/S1063773712050015 ,S2CID 119257644 . ^a b Adams, Walter S.; et al. (April 1935), "The Spectroscopic Absolute Magnitudes and Parallaxes of 4179 Stars",Astrophysical Journal ,81 : 187,Bibcode :1935ApJ....81..187A ,doi :10.1086/143628 ^a b "60 Cnc" .SIMBAD Centre de données astronomiques de Strasbourg . Retrieved2019-03-09 .^a b c d e f g Feuillet, Diane K.; et al. (2016), "Determining Ages of APOGEE Giants with Known Distances",The Astrophysical Journal ,817 (1): 40,arXiv :1511.04088 Bibcode :2016ApJ...817...40F ,doi :10.3847/0004-637X/817/1/40 S2CID 118675933 . ^a b c Yu, Jie; Khanna, Shourya; Themessl, Nathalie; Hekker, Saskia; Dréau, Guillaume; Gizon, Laurent; Bi, Shaolan (2023)."Revised Extinctions and Radii for 1.5 Million Stars Observed by APOGEE, GALAH, and RAVE" .The Astrophysical Journal Supplement Series .264 (2): 41.arXiv :2206.00046 Bibcode :2023ApJS..264...41Y .doi :10.3847/1538-4365/acabc8 ^ Das, Pradosh Barun; Zucker, Daniel B.; De Silva, Gayandhi M.; Borsato, Nicholas W.; Mura-Guzmán, Aldo; Buder, Sven; Ness, Melissa; Nordlander, Thomas; Casey, Andrew R.; Martell, Sarah L.; Bland-Hawthorn, Joss; De Grijs, Richard; Freeman, Ken C.; Kos, Janez; Stello, Dennis; Lewis, Geraint F.; Hayden, Michael R.; Sharma, Sanjib (2025)."The GALAH Survey: Stellar parameters and abundances for 800 000 Gaia RVS spectra using GALAH DR4 and the Cannon" .Monthly Notices of the Royal Astronomical Society .538 (2): 605.arXiv :2410.12272 Bibcode :2025MNRAS.538..605D .doi :10.1093/mnras/staf169 ^ White, Nathaniel M.; Feierman, Barry H. (September 1987), "A Catalog of Stellar Angular Diameters Measured by Lunar Occultation",Astronomical Journal ,94 : 751,Bibcode :1987AJ.....94..751W ,doi :10.1086/114513 . ^ Samus N. N.; et al. (2017), "General Catalogue of Variable Stars",Astronomy Reports , 5.1,61 (1):80– 88,Bibcode :2017ARep...61...80S ,doi :10.1134/S1063772917010085 ,S2CID 125853869 . ^ Richichi, A.; et al. (February 2005), "CHARM2: An updated Catalog of High Angular Resolution Measurements",Astronomy and Astrophysics ,431 (2):773– 777,Bibcode :2005A&A...431..773R ,doi :10.1051/0004-6361:20042039 ^ Lang, Kenneth R. (2006),Astrophysical formulae Birkhäuser ,ISBN 3-540-29692-1 * ) is given by:2 ⋅ R ∗ = ( 10 − 3 ⋅ 259.1 ⋅ 1.94 ) AU 0.0046491 AU / R ⨀ ≈ 108 ⋅ R ⨀ {\displaystyle {\begin{aligned}2\cdot R_{*}&={\frac {(10^{-3}\cdot 259.1\cdot 1.94)\ {\text{AU}}}{0.0046491\ {\text{AU}}/R_{\bigodot }}}\\&\approx 108\cdot R_{\bigodot }\end{aligned}}}
