4 Arietis

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, which corresponds to a distance from Earth of 275 light-years (84 parsecs). It has an apparent visual magnitude of 5.86, 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. It has around 2.5 times the mass of the Sun and shines with 40 times the Sun's luminosity.