HD 95808

HD 95808
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]
Distance340 ± 20 ly
(104 ± 7 pc)
Details[4]
Mass2.43 ± 0.15 M☉
Radius10.10 ± 0.76 R☉
Luminosity64.6 L☉
Surface gravity (log g)3.05 ± 0.07 cgs
Temperature5029 ± 34 K
Metallicity [Fe/H]−0.04 ± 0.03 dex
Rotational velocity (v sin i)2.27 ± 0.45 km/s
Age0.68 ± 0.13 Gyr
Other designations
BD−10° 3184, HD 95808, HIP 54029, HR 4305, SAO 156421
Database references
SIMBADdata

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]

  1. ^ 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.
  2. ^ 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.
  3. ^ 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.
  4. ^ 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.