Rho3 Arietis

Rho³ Arietis is a star in the northern constellation of Aries. Its name is a Bayer designation that is Latinized from ρ³ Arietis, and abbreviated Rho³ Ari or ρ³ Ari. This star is faintly visible to the naked eye with an apparent visual magnitude of 5.63. Based upon an annual parallax shift of, this star is located at a distance of from Earth. It is drifting further away from the Sun with a radial velocity of +13.6 km/s.
This is an astrometric binary system. The visible component is an F-type main sequence star with a stellar classification of F6 V. This star has 1.49 times the mass of the Sun and is radiating 6.65 times the Sun's luminosity at an effective temperature of 6,380 K. It is around 2.4 billion years old and has a lower abundance of elements other than hydrogen and helium when compared to the Sun.

Name

This star, along with δ Ari, ε Ari, ζ Ari, and π Ari, were Al Bīrūnī's Al Buṭain, the dual of Al Baṭn, the Belly. According to the catalogue of stars in the Technical Memorandum 33-507 - A Reduced Star Catalog Containing 537 Named Stars, Al Buṭain were the title for five stars : δ Ari as Botein, π Ari as Al Buṭain I, ρ³ Ari as Al Buṭain II, ε Ari as Al Buṭain III dan ζ Ari as Al Buṭain IV.