20 Arietis
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Aries |
| Right ascension | 02h 15m 46.04981s[1] |
| Declination | +25° 46′ 58.5741″[1] |
| Apparent magnitude (V) | 5.79[2] |
| Distance | 137 ± 2 ly (42.1 ± 0.6[1] pc) |
| Spectral type | F6 IV-V[3] |
| Other designations | |
20 Arietis (abbreviated 20 Ari) is a star in the northern constellation of Aries. 20 Arietis is the Flamsteed designation. A member of the Hyades open cluster (Melotte 25) it has an apparent visual magnitude of 5.79,[2] which is bright enough to be just faintly visible to the named eye. Based upon an annual parallax shift of 23.75 ± 0.33 mas, it is approximately 137 light-years (42 parsecs) distant from Earth.
This star has a stellar classification of F6 IV-V,[3] with the spectrum indicating it shows properties of both a main sequence and a more evolved subgiant star. 20 Arietis is around 1.7 billion years old.[5]
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