Definition of Orion Nebula

1. Proper noun. (astronomy) A diffuse nebula visible in the night sky below Orion's Belt; it is approximately 40 light years across. It is one of the brightest nebulae visible to the naked eye and is the closest region of stellar formation to Earth. ¹



¹ Source: wiktionary.com

Orion Nebula Pictures

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Lexicographical Neighbors of Orion Nebula

Origenist
Origenists
Orimulsion
Orimulsions
Orin
Orinase
Orinoco
Orinoco River
Oriole
Orioles
Oriolidae
Oriolus
Oriolus oriolus
Orion
Orion's Belt
Orion Nebula (current term)
Orissa
Oristano
Orites
Orites excelsa
Oriya
Oriyas
Orizaba
Orkhomenos
Orkney
Orkney Islands
Orkneyan
Orkneyans
Orkneys
Orla

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