Phi Ursae Majoris, Latinized from àUrsae Majoris, is a binary star system in the northern constellation of Ursa Major. It is white-hued and is visible to the naked eye with a combined apparent visual magnitude of +4.60; the primary is magnitude 5.28 while the secondary is magnitude 5.39. The system is located at a distance of approximately from the Sun based on parallax, but is drifting closer with a radial velocity of âÂÂ14.7 km/s. It should make its closest approach at a distance of around in about 4.7 million years.
As of 2017, the components had an angular separation of along a position angle of 304ð. They are orbiting each other with a period of 105.4 years and eccentricity of 0.44. Both of components are A-type subgiant stars with a stellar classification of A3 IV.
Phi Ursae Majoris is moving through the galaxy at a speed of 21.6 km/s relative to the Sun. Its projected galactic orbit carries it between 24,000 and 46,000 light-years from the center of the galaxy.
With ÃÂ, h, ÃÂ, ø, e, and f, it composed the Arabic asterism Sarër BanÃÂt al-Na'sh, the Throne of the daughters of Na'sh, and Al-<u>H</u>au<u>d</u>, the Pond. According to the catalogue of stars in the Technical Memorandum 33-507 - A Reduced Star Catalog Containing 537 Named Stars, Al-<u>H</u>au<u>d</u> were the title for seven stars: f as Alhaud I, àas Alhaud II, e as Alhaud III, h as Alhaud IV, ø as Alhaud V, àas Alhaud VI and this star (ÃÂ) as Alhaud VII.
In Chinese, (), meaning Administrative Center, refers to an asterism consisting of àUrsae Majoris, àUrsae Majoris, ø Ursae Majoris, 15 Ursae Majoris and 18 Ursae Majoris. Consequently, the Chinese name for àUrsae Majoris itself is known as (, ).