LP 145-141

LP 145-141, also known as LAWD 37, is an isolated white dwarf located 15.1 light-years (4.6 parsecs) from the Solar System in the constellation Musca. According to a 2009 paper, it is the fourth closest known white dwarf to the Sun (after Sirius B, Procyon B, and van Maanen's star.)

LP 145-141

LP 145-141 seen by the Hubble Space Telescope
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Musca
Right ascension 11h 45m 42.91694s
Declination −64° 50 29.4620
Apparent magnitude (V) 11.50
Characteristics
Spectral type DQ6
U−B color index -0.59
B−V color index +0.19
Astrometry
Proper motion (μ) RA: 2661.640 mas/yr
Dec.: -344.933 mas/yr
Parallax (π)215.6753 ± 0.0181 mas
Distance15.123 ± 0.001 ly
(4.6366 ± 0.0004 pc)
Details
Mass0.56 ± 0.08 M
Radius0.01 R
Luminosity0.0005 L
Surface gravity (log g)8.27 ± 0.05 cgs
Temperature8,500 ± 300 K
Age(as white dwarf)
1.44 Gyr
Other designations
GJ 440, HIP 57367, BPM 7108, Ci 20 658, EGGR 82, L 145-141, LAWD 37, LHS 43, LP 145-141, LPM 396, LTT 4364, NLTT 28447, PLX 2716, PM 11429-6434, WD 1142-645, TYC 8981-4417-1, GSC 08981-04418, 2MASS J11454297-6450297
Database references
SIMBADdata
LP 145-141
Location of LP 145-141 in the constellation Musca

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