Ursa Minor train, of light" (i.e. λύκος "wolf" vs. λύκ- "light"). Allen points to the Old Irish name of the constellation, "drag-blod" "fire trail", for comparison. Brown (1899) suggested a non-Greek origin of the name (a loan from an Assyrian "An‑nas-sur‑ra" "high-rising"). An alternative myth tells of two bears that saved Zeus from his murderous father Cronus by hiding him on Mount Ida. Later Zeus set them in the sky, but their tails grew long from being swung up into the sky by the god. Because Ursa Minor consists of seven stars, the Latin word for "north" ("i.e.", where Polaris points) is
Ursa Major Moving Group same direction at similar velocities, and also have similar chemical compositions and estimated ages. This evidence suggests to astronomers that the stars in the group share a common origin. Based on the numbers of its constituent stars, the Ursa Major Moving Group is believed to have once been an open cluster, having formed from a protostellar nebula approximately 500 million years ago. Since then, the sparse group has scattered over a region about 30 by 18 light-years, whose center is currently about 80 light-years away, making it the closest cluster-like object to Earth. The Ursa Major Moving Group was discovered