WD 1145+017
WD 1145+017 (also known as EPIC 201563164) is a white dwarf approximately 570 light-years (170 pc) from Earth in the constellation of Virgo. It is the first white dwarf to be observed with a transiting planetary-mass object orbiting it.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Virgo |
| Right ascension | 11h 48m 33.63s |
| Declination | +01° 28′ 59.4″ |
| Apparent magnitude (V) | 17.0 |
| Characteristics | |
| Evolutionary stage | White dwarf |
| Spectral type | DB |
| Astrometry | |
| Distance | 570 ly (174.0 pc) |
| Details | |
| Mass | 0.63 ± 0.05 M☉ |
| Radius | 0.013 R☉ |
| Temperature | 15,020 ± 520 K |
| Metallicity [Fe/H] | ~0.1 dex |
| Age | 774 ± 130 Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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