Mizar & Alcor and Andromeda Galaxy
Mizar & Alcor
Mizar and Alcor's proper motion show they move together (they are both members of the Ursa Major), but it has yet to be demonstrated conclusively that they are gravitationally bound. Recent studies indicate that the Alcor binary and Mizar quadruple are somewhat closer together than previously thought: approximately 74,000 & 39,000 astronomic units or 0.5–1.5 light years. The pair is considered to symbolize marriage (Vashishtha and Arundhati were a married couple) and, in some Hindu communities, priests conducting a wedding ceremony allude to or point out the constellation as a symbol of the closeness marriage brings to a couple.