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Oklahoma (/ ˌ oʊ k l ə ˈ h oʊ m ə / (); Choctaw: Oklahumma) is a state in the South Central region of the United States, bordered by Texas on the south and west, Kansas on the north, Missouri on the northeast, Arkansas on the east, New Mexico on the west, and Colorado on the northwest.
The Omega Nebula is an H II region, a type of emission nebula, in the constellation Sagittarius.It was discovered by Jean-Philippe Loys de Cheseaux in 1745. Charles Messier catalogued it in 1764 as number 17 in his set of comet-like astronomical objects.