HD 95808
From Wikipedia, the free encyclopedia
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
Star in the constellation Crater
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Crater |
| Right ascension | 11h 03m 14.87973s[1] |
| Declination | −11° 18′ 12.4981″[1] |
| Apparent magnitude (V) | 5.50[2] |
| Characteristics | |
| Spectral type | G7-IIIb[3] |
| B−V color index | +0.94[2] |
| Astrometry | |
| Radial velocity (Rv) | −8.90 ± 0.10[4] km/s |
| Proper motion (μ) | RA: −81.61[1] mas/yr Dec.: −108.01[1] mas/yr |
| Parallax (π) | 9.63 ± 0.69 mas [1] |
| Distance | 340 ± 20 ly (104 ± 7 pc) |
| Details[4] | |
| Mass | 2.43 ± 0.15 M☉ |
| Radius | 10.10 ± 0.76 R☉ |
| Luminosity | 64.6 L☉ |
| Surface gravity (log g) | 3.05 ± 0.07 cgs |
| Temperature | 5029 ± 34 K |
| Metallicity [Fe/H] | −0.04 ± 0.03 dex |
| Rotational velocity (v sin i) | 2.27 ± 0.45 km/s |
| Age | 0.68 ± 0.13 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 95808 is a double star in the constellation of Crater. Its apparent magnitude is 5.50,[2] but interstellar dust makes it appear 0.11 magnitudes dimmer than it should be.[4] It is located some 340 light-years (104 parsecs) away, based on parallax.[1]
HD 95808 is a G-type giant star. At an age of 680 million years old, it has swelled up to a radius of 10.1 times that of the Sun, and it is 2.43 times as massive. It emits 64.6 times as much energy as the Sun at a surface temperature of 5,029 K.[4]
References
- ^ 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.
- ^ a b c Corben, P. M. (1966). "Photoelectric magnitudes and colours for bright southern stars". Monthly Notes of the Astron. Soc. Southern Africa. 25: 44. Bibcode:1966MNSSA..25...44C.
- ^ Keenan, Philip C.; McNeil, Raymond C. (1989). "The Perkins catalog of revised MK types for the cooler stars". The Astrophysical Journal Supplement Series. 71: 245. Bibcode:1989ApJS...71..245K. doi:10.1086/191373.
- ^ a b c d Jofré, E.; Petrucci, R.; Saffe, C.; Saker, L.; de la Villarmois, E. Artur; Chavero, C.; Gómez, M.; Mauas, P. J. D. (2015). "Stellar parameters and chemical abundances of 223 evolved stars with and without planets". Astronomy & Astrophysics. 574: A50. arXiv:1410.6422 . Bibcode:2015A&A...574A..50J. doi:10.1051/0004-6361/201424474. S2CID 53666931.
Retrieved from "https://en.wikipedia.org/w/index.php?title=HD_95808&oldid=1079516572"