Wolf 489

Wolf 489
Observation data
Epoch J2000[1]      Equinox J2000[1]
Constellation Virgo
Right ascension 13h 36m 31.81s[1]
Declination +03° 40′ 45.″[1]
Apparent magnitude (V) 14.66[2]
Characteristics
Spectral type DZ10.0[2][3]
Apparent magnitude (B) 15.59[1]
Apparent magnitude (V) 14.63[1]
Apparent magnitude (R) 14.0[1]
Apparent magnitude (I) 14.1[1]
Apparent magnitude (J) 13.06[1]
Apparent magnitude (H) 12.82[1]
Apparent magnitude (K) 12.69[1]
Astrometry
Proper motion (μ) RA: -3735.839[4] mas/yr
Dec.: -1113.581[4] mas/yr
Parallax (π)119.7566 ± 0.0304 mas[4]
Distance27.235 ± 0.007 ly
(8.350 ± 0.002 pc)
Absolute magnitude (MV)15.08[2][5][note 1]
Details
Mass0.55 ± 0.03[2] M☉
Radius0.013[2][note 2] R☉
Surface gravity (log g)7.95 ± 0.02[2] cgs
Temperature5030 ± 120[2] K
Age5.19[3][note 3] Gyr
Other designations
WD 1334+039,[2][3] Wolf 489,[1] Gliese 518,[1] LHS 46,[2] LFT 1023,[1] LTT 13961,[1] NLTT 34618,[1] G 062-053,[5] G 62-53,[1] G 64-4,[1] EGGR 100,[1] 2MASS J13363181+0340458,[1] USNO-B1.0 0936-00229354[1]
Database references
SIMBADdata

Wolf 489 (WD 1334+039, LHS 46, G 062-053, Gliese 518) is a nearby degenerate star (white dwarf) of spectral class DZ10.0[2][3]), the single known component of the system, located in the constellation Virgo.

  1. ^ a b c d e f g h i j k l m n o p q r s t u "GJ 518 -- White Dwarf". Centre de Données astronomiques de Strasbourg. Retrieved 2011-11-02.
  2. ^ a b c d e f g h i j Holberg, J. B.; Sion; Oswalt; McCook; Foran; Subasavage (2008). "A New Look at the Local White Dwarf Population". The Astronomical Journal. 135 (4): 1225–1238. Bibcode:2008AJ....135.1225H. doi:10.1088/0004-6256/135/4/1225. S2CID 122855486.
  3. ^ a b c d Sion, Edward M.; Holberg; Oswalt; McCook; Wasatonic (2009). "The White Dwarfs within 20 Parsecs of the Sun: Kinematics and Statistics". The Astronomical Journal. 138 (6): 1681–1689. arXiv:0910.1288. Bibcode:2009AJ....138.1681S. doi:10.1088/0004-6256/138/6/1681. S2CID 119284418.
  4. ^ a b c Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  5. ^ a b Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)


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