RE 0503−289
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Caelum[1] |
| Right ascension | 05h 03m 55.5149s[2] |
| Declination | −28° 54′ 34.631″[2] |
| Apparent magnitude (V) | 13.58[3] |
| Characteristics | |
| Spectral type | DOZ[3] |
| Astrometry | |
| Proper motion (μ) | RA: +76.715 mas/yr[2] Dec.: +72.251 mas/yr[2] |
| Parallax (π) | 7.2332±0.0325 mas[2] |
| Distance | 451 ± 2 ly (138.3 ± 0.6 pc) |
| Details | |
| Temperature | 60,000-80,000[4] K |
| Other designations | |
| WD 0501-289, 2MASS J05035551-2854345, RE J0503-289, MCT 0501-2858[3] | |
| Database references | |
| SIMBAD | data |
RE 0503−289 is a hot helium rich (DO type) white dwarf. Optical and UV spectroscopy of this white dwarf gives a range of temperature between 60,000-80,000 Kelvin.[4] It lies in a region of space with a low interstellar hydrogen density and close to another hot DO type white dwarf named RE 0457-281.[4] A large variety of chemical elements have been found, many of which are heavier than the element iron.[5][6]
RE 0503-289 was the only known DO type white dwarf detected by the ROSAT sky survey.[4]
