4 Arietis
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Aries |
| Right ascension | 01h 48m 10.93603s[1] |
| Declination | +16° 57′ 19.9768″[1] |
| Apparent magnitude (V) | 5.86[2] |
| Distance | 275 ± 6 ly (84 ± 2[1] pc) |
| Spectral type | B9.5 V[3] |
| Other designations | |
4 Arietis (abbreviated 4 Ari) is a star in the northern constellation of Aries, the ram. 4 Arietis is the Flamsteed designation. Its apparent magnitude is 5.86. It has an annual parallax shift of 11.85 ± 0.25 mas,[1] which corresponds to a distance from Earth of 275 light-years (84 parsecs). It has an apparent visual magnitude of 5.86,[2] making it visible to the naked eye from dark suburban skies. This is a B-type main sequence star with a stellar classification of B9.5 V.[3] It has around 2.5 times the mass of the Sun and shines with 40 times the Sun's luminosity.[5]
References
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