of about . Their age is about 34 million years. Nomenclature γ Arietis (Latinised to Gamma Arietis) is the system's Bayer designation; γ1 and γ2 Arietis those of its two components. The designation of the two components as Gamma Arietis A and B derive from the convention used by the Washington Multiplicity Catalog (WMC) for multiple star systems, and adopted by the International Astronomical Union (IAU). Gamma Arietis has been called "the First Star in Aries" as having been at one time the nearest visible star to the equinoctial point. It bore the traditional name Mesarthim. Originally it had shared the name Sheratan with Beta Arietis. However, this got corrupted to "Sartai" in medieval manuscripts, which Bayer erroneously explained as being the Hebrew grammatical term "servants", and later scholars picked up on this term. In 2016, the IAU organized a Working Group on Star Names (WGSN) to catalogue and standardize proper names for stars. The WGSN decided to attribute proper names to individual stars rather than entire multiple systems. It approved the name Mesarthim for the component γ2 Arietis on 21 August 2016 and it is now so entered in the IAU Catalog of Star Names. In Chinese, (), meaning Bond (asterism), refers to an asterism consisting of Gamma, Beta and Alpha Arietis. Consequently, the Chinese name for Gamma Arietis itself is (, ). In Hindu astrology, Gamma Arietis and Beta Arietis (Sheratan) are Ashvins, the twin Rigvedic deities who act as doctors of the divine of the world.(Richard H Allen) References External links HR 545 HR 546 The Constellations and Named Stars Image Gamma Arietis Image Gamma2 Arietis 011502 Binary stars 008832 Aries (constellation) Arietis, Gamma Alpha2 Canum Venaticorum variables A-type main-sequence stars Mesarthim Arietis, 05 0545 6 A-type subgiants Durchmusterung objects Lambda Boötis stars