Messier 43 (M43), also known as De Mairan’s Nebula, is a star-forming region located in the constellation Orion. M43 has an apparent magnitude of 9.0 and lies at a distance of 1,600 light years from Earth. It has the designation NGC 1982 in the New General Catalogue.
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Messier 42 (M42), the famous Orion Nebula, is an emission-reflection nebula located in the constellation Orion, the Hunter. With an apparent magnitude of 4.0, the Orion Nebula is one of the brightest nebulae in the sky and is visible to the naked eye. It lies at a distance of 1,344 light years from Earth and is the nearest stellar nursery to Earth. The nebula has the designation NGC 1976 in the New General Catalogue.
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