Ursa Major
https://gyazo.com/ebe2e543a06050a6d7d268693f3cd176
source: By Till Credner - Own work: AlltheSky.com, CC BY-SA 3.0
Astronomy
one of the largest and most prominent northern constellations (the Great Bear). The seven brightest stars form a familiar formation variously called the Plough, Big Dipper, or Charles's Wain, and include the Pointers.
〘天〙 おおぐま座〘the Great Bearのラテン語名〙
postpositive adjective (Ursae Majoris |ˈərsē məˈjôris| )
used with preceding Greek letter or numeral to designate a star in the constellation Ursa Major:
e.g. the star Delta Ursae Majoris.
ORIGIN
Latin, from the story in Greek mythology that the nymph Callisto was turned into a bear and placed as a constellation in the heavens by Zeus. Ursae Majoris is the Latin genitive of Ursa Major.