110 Virginis
Star in the constellation Virgo
From Wikipedia, the free encyclopedia
110 Virginis is a star in the zodiac constellation Virgo, located 195[1] 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.[2] The star is moving closer to the Earth with a heliocentric radial velocity of −16 km/s.[1]
 | |
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Virgo |
| Right ascension | 15h 02m 54.03756s[1] |
| Declination | +02° 05′ 28.6957″[1] |
| Apparent magnitude (V) | 4.40[2] |
| Characteristics | |
| Evolutionary stage | red clump[3] |
| Spectral type | K0.5 IIIb Fe–0.5[4] |
| B−V color index | 1.04[2] |
| Astrometry | |
| Radial velocity (Rv) | −16.2±0.3[1] km/s |
| Proper motion (μ) | RA: −55.569 mas/yr[1] Dec.: +13.628 mas/yr[1] |
| Parallax (π) | 16.7474±0.129 mas[1] |
| Distance | 195 ± 2 ly (59.7 ± 0.5 pc) |
| Details | |
| Mass | 1.67[2] M☉ |
| Radius | 13.78±0.14[5] R☉ |
| Luminosity | 80.4±1.8[5] L☉ |
| Surface gravity (log g) | 2.7[6] cgs |
| Temperature | 4,655±24[5] K |
| Metallicity [Fe/H] | −0.3[6] dex |
| Age | 4.52[2] Gyr |
| Other designations | |
| 110 Vir, BD+02°2905, FK5 3190, GC 20237, HD 133165, HIP 73620, HR 5601, SAO 120809[7] | |
| Database references | |
| SIMBAD | data |
The stellar classification of 110 Virginis is K0.5 IIIb Fe–0.5,[4] indicating that this is an evolved giant star with a mild underabundance of iron in its spectrum. At the age of 4.5[2] 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.[3] Compared to the Sun, it has 167%[2] 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.[5]