110 Virginis

Star in the constellation Virgo Virgo IAU.svg center 280 right Red circle.svg 10 110 Virginis 125 330 Location of 110 Virginis (circled in red) J2000.0 J2000.0 (ICRS) Virgo 15 02 54.03756 +02 05 28.6957 4.40 red clump K0.5 IIIb Fe–0.5 1.04 -16.2 0.3 -55.569 +13.628 16.7474 0.129 1.67 13.78 0.14 80.4 1.8 4655 24 commas 2.7 −0.3 4.52 110 Vir +02°2905 3190 133165 73620 5601 120809 20237 110+Vir 110 Virginis is a star in the zodiac constellation Virgo, located 195 light-years away from Earth. It is visible to the naked eye as an orange-hued star with an apparent visual magnitude of 4.40. The star is moving closer to the Earth with a heliocentric radial velocity of −16 km/s. The stellar classification of 110 Virginis is K0.5 IIIb Fe–0.5, indicating that this is an evolved giant star with a mild underabundance of iron in its spectrum. At the age of 4.5 billion years old, it belongs to a sub-category of giants called the red clump, which means it is on the horizontal branch and is generating energy through the helium fusion at its core. Compared to the Sun, it has 167% of the mass but has expanded to 14 times the size. The enlarged photosphere has an effective temperature of 4,655 K and is radiating 80 times the Sun's luminosity. References 110 Vir 2019-02-16 2021AJ....162..198B Angular Diameters and Fundamental Parameters of Forty-four Stars from the Navy Precision Optical Interferometer Baines Ellyn K. Thomas Armstrong J. Clark James H. Gorney Jim Hutter Donald J. Jorgensen Anders M. Kyte Casey Mozurkewich David Nisley Ishara Sanborn Jason Schmitt Henrique R. Van Belle Gerard T. The Astronomical Journal 2021 162 5 198 10.3847/1538-3881/ac2431 free 2211.09030 1153780605441364224 Abundances in the Local Region. I. G and K Giants Luck R. Earle Astronomical Journal . 150 3 88 2015 1507.01466 2015AJ....150...88L 10.1088/0004-6256/150/3/88 118505114 Precise radial velocities of giant stars. III. Spectroscopic stellar parameters Hekker S. Meléndez J. Astronomy & Astrophysics . 475 3 1003–1009 December 2007 10.1051/0004-6361:20078233 2007A&A...475.1003H 0709.1145 10436552 Alves David R. K-Band Calibration of the Red Clump Luminosity The Astrophysical Journal 539 2 732–741 August 2000 10.1086/309278 2000ApJ...539..732A . astro-ph/0003329 16673121 Keenan Philip C. McNeil Raymond C. The Perkins catalog of revised MK types for the cooler stars Astrophysical Journal Supplement Series 71 245 1989 1989ApJS...71..245K 10.1086/191373 15 02 54.0 + 02 05 28.7 Category:K-type giants Category:Horizontal-branch stars Category:Virgo (constellation) BD+02 2905 Virginis, 110 133165 073620 5601