WD 1145+017
White dwarf in the constellation of Virgo / From Wikipedia, the free encyclopedia
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WD 1145+017 (also known as EPIC 201563164[4]) is a white dwarf approximately 476 light-years (146 parsecs) from Earth in the constellation of Virgo. It is the first white dwarf to be observed with a transiting minor planet orbiting it.[6][7][8]
Quick Facts Constellation, Right ascension ...
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Virgo[1] |
Right ascension | 11h 48m 33.62972s[2] |
Declination | +01° 28′ 59.4204″[2] |
Apparent magnitude (V) | 17.24±0.02[3] |
Characteristics | |
Evolutionary stage | White dwarf |
Spectral type | DB[4] |
Astrometry | |
Proper motion (μ) | RA: -43.664 mas/yr[2] Dec.: -4.027 mas/yr[2] |
Parallax (π) | 6.8534 ± 0.0907 mas[2] |
Distance | 476 ± 6 ly (146 ± 2 pc) |
Details | |
Mass | 0.63±0.05[5] M☉ |
Radius | 0.012±0.001[3] R☉ |
Luminosity | 0.0088±0.0021[3] L☉ |
Surface gravity (log g) | 8.07±0.07[5] cgs |
Temperature | 15,020±520[5] K |
Age | 774±130[5] Myr |
Other designations | |
Database references | |
SIMBAD | data |
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