Summary
110 Herculis (abbreviated to 110 Her) is a star in the northern constellation of Hercules. Its apparent magnitude is 4.19,[2] and it can be faintly seen with the naked eye, according to the Bortle scale. Based on parallax estimates made by the Hipparcos spacecraft, the star is located fairly close, about 62.7 light-years (19.21 parsecs) away.[1]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Hercules |
| Right ascension | 18h 45m 39.72570s[1] |
| Declination | +20° 32′ 46.7171″[1] |
| Apparent magnitude (V) | 4.19[2] |
| Characteristics | |
| Spectral type | F6V[3] |
| U−B color index | +0.005[4] |
| B−V color index | +0.45[4] |
| Astrometry | |
| Radial velocity (Rv) | 23.37 ± 0.1[5] km/s |
| Proper motion (μ) | RA: -8.87[1] mas/yr Dec.: -334.56[1] mas/yr |
| Parallax (π) | 52.06 ± 0.25 mas[1] |
| Distance | 62.7 ± 0.3 ly (19.21 ± 0.09 pc) |
| Absolute magnitude (MV) | 2.77[3] |
| Details[3] | |
| Mass | 1.4–1.7 M☉ |
| Radius | 2.0 R☉ |
| Luminosity | 6.14 L☉ |
| Surface gravity (log g) | 4.08 cgs |
| Temperature | 6431 K |
| Metallicity [Fe/H] | +0.04 dex |
| Rotation | <7.2 d |
| Rotational velocity (v sin i) | 14.08 km/s |
| Age | 1.6–4.7 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
110 Herculis has a spectrum matching that of an F-type main-sequence star. It is about 1.4 to 1.7 times more massive than the Sun, and about two times wider than the Sun. Its effective temperature is about 6400 K. An infrared excess has been detected, indicating the presence of a circumstellar disk.[3]
110 Herculis is the 17th-brightest star in the constellation.[citation needed] It is located in the sky about halfway between Rasalague in Ophiuchus and Albireo in Cygnus, offset a trifle west.[citation needed] 110 Herculis, along with its apparent neighbors 111 Herculis, 112 Herculis, and 113 Herculis lie close to the eastern edge of the constellation of Hercules.[citation needed]
References edit
- ^ a b c d e f van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600. Archived from the original on 2016-04-02.
- ^ a b Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
- ^ a b c d Marshall, J. P.; Krivov, A. V.; Del Burgo, C.; Eiroa, C.; Mora, A.; Montesinos, B.; Ertel, S.; Bryden, G.; Liseau, R.; Augereau, J.-C.; Bayo, A.; Danchi, W.; Löhne, T.; Maldonado, J.; Pilbratt, G. L.; Stapelfeldt, K.; Thebault, P.; White, G. J.; Wolf, S. (2013). "Herschel observations of the debris disc around HIP 92043" (PDF). Astronomy & Astrophysics. 557: A58. Bibcode:2013A&A...557A..58M. doi:10.1051/0004-6361/201218976.
- ^ a b Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. Bibcode:1986EgUBV........0M.
- ^ Nidever, David L.; et al. (2013). "Radial Velocities for 889 Late-Type Stars". The Astrophysical Journal Supplement Series. 141 (2): 503–522. arXiv:astro-ph/0112477. Bibcode:2002ApJS..141..503N. doi:10.1086/340570. S2CID 51814894.