Pi Arietis is a multiple star system in the northern constellation of Aries. Its name is a Bayer designation that is Latinized from ÃÂ Arietis, and abbreviated Pi Ari or ÃÂ Ari. Based upon parallax measurements made during the Hipparcos mission, this system is approximately distant from Earth, and has an apparent visual magnitude of 5.314. This is bright enough to be faintly seen with the naked eye. The position of this system near the ecliptic means it is subject to lunar occultation.
The primary member of this system is an intermediate-mass, B-type main sequence star with a stellar classification of B6 V. It is a close, single-lined spectroscopic binary with an orbital period of 3.854 days, an eccentricity of 0.04, and a combined visual magnitude of 5.30. At an angular separation of 3.28 arcseconds is a magnitude 8.46 A-type main sequence star with a classification of A0 Vp. Finally, a fourth member of the system is a magnitude 11.0 F-type main sequence star with a classification of F8V at an angular separation of 25.2 arcseconds from the primary.
This star, along with ô Ari, õ Ari, ö Ari, and ÃÂ<sup>3</sup> Ari, were Al Bërà «në's Al Buá¹Âain (ãÃÂè÷ÃÂÃÂ), the dual of Al Baá¹Ân, the Belly. According to the catalogue of stars in the Technical Memorandum 33-507 - A Reduced Star Catalog Containing 537 Named Stars, Al Buá¹Âain were the title for five stars : ô Ari as Botein, àAri as Al Buá¹Âain I, ÃÂ<sup>3</sup> Ari as Al Buá¹Âain II, õ Ari as Al Buá¹Âain III dan ö Ari as Al Buá¹Âain IV.
In Chinese, (), meaning Official in Charge of the Forest, refers to an asterism consisting of àArietis, ý Arietis, ü Arietis, ÿ Arietis and àArietis. Consequently, the Chinese name for àArietis itself is (, .)