110 Virginis
  | |
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Virgo |
| Right ascension | 15h 02m 54.03756s |
| Declination | +02° 05′ 28.6957″ |
| Apparent magnitude (V) | 4.40 |
| Characteristics | |
| Evolutionary stage | red clump |
| Spectral type | K0.5 IIIb Fe–0.5 |
| B−V color index | 1.04 |
| Astrometry | |
| Radial velocity (Rv) | −16.2±0.3 km/s |
| Proper motion (μ) | RA: −55.569 mas/yr Dec.: +13.628 mas/yr |
| Parallax (π) | 16.7474±0.129 mas |
| Distance | 195 ± 2 ly (59.7 ± 0.5 pc) |
| Details | |
| Mass | 1.67 M☉ |
| Radius | 13.78±0.14 R☉ |
| Luminosity | 80.4±1.8 L☉ |
| Surface gravity (log g) | 2.7 cgs |
| Temperature | 4,655±24 K |
| Metallicity [Fe/H] | −0.3 dex |
| Age | 4.52 Gyr |
| Other designations | |
| 110 Vir, BD+02°2905, FK5 3190, GC 20237, HD 133165, HIP 73620, HR 5601, SAO 120809 | |
| Database references | |
| SIMBAD | data |
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
- 1 2 3 4 5 6 7 8 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- 1 2 3 4 5 6 7 Luck, R. Earle (2015), "Abundances in the Local Region. I. G and K Giants", Astronomical Journal, 150 (3), 88, arXiv:1507.01466, Bibcode:2015AJ....150...88L, doi:10.1088/0004-6256/150/3/88, S2CID 118505114.
- 1 2 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.
- 1 2 Keenan, Philip C.; McNeil, Raymond C. (1989), "The Perkins catalog of revised MK types for the cooler stars", Astrophysical Journal Supplement Series, 71: 245, Bibcode:1989ApJS...71..245K, doi:10.1086/191373
- 1 2 3 4 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. (2021), "Angular Diameters and Fundamental Parameters of Forty-four Stars from the Navy Precision Optical Interferometer", The Astronomical Journal, 162 (5): 198, arXiv:2211.09030, Bibcode:2021AJ....162..198B, doi:10.3847/1538-3881/ac2431
- 1 2 Hekker, S.; Meléndez, J. (December 2007), "Precise radial velocities of giant stars. III. Spectroscopic stellar parameters", Astronomy & Astrophysics, 475 (3): 1003–1009, arXiv:0709.1145, Bibcode:2007A&A...475.1003H, doi:10.1051/0004-6361:20078233, S2CID 10436552.
- ↑ "110 Vir". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-02-16.
