grande ourse signifie anglais

Great Bear▼◼◼◼(a bright circumpolar asterism of the northern sky)
proper noun
[UK: ˈɡreɪt beə(r)] [US: ˈɡreɪt ˈber]

Ursa Major▼◼◼◼(large circumpolar constellation of the northern sky)
proper noun
[UK: ˈɜː.sə ˈmeɪ.dʒə(r)] [US: ˈɝː.sə ˈmeɪ.dʒər]