53 Arietis
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| Observation data Equinox J2000 |
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|---|---|
| Constellation | Aries |
| Right ascension | 03h 07m 25.7s |
| Declination | +17° 52' 48" |
| Apparent magnitude (V) | c:a +6.1 |
| Distance | 546±181 ly (244±56 pc) |
| Spectral type | B1.5V |
| Other designations | |
53 Arietis is a variable star of Beta Cephei type, alternatively denoted UW Arietis, in the constellation Aries. Its mean apparent magnitude is 6.13 and its spectral type is O or early B. It is a runaway star, thought to have been produced as a consequence of one of a pair of binary stars going supernova. Tracing its motion back shows it was ejected from the Orion nebula approximately two million years ago.
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