BabelNet

bn:01580760n

Noun Named Entity

Categories: Orion Molecular Cloud Complex, NGC objects, Orion (constellation), Reflection nebulae

NGC 1999 NGC1999

NGC 1999, also known as The Cosmic Keyhole, is a dust-filled bright nebula with a vast hole of empty space represented by a black patch of sky, as can be seen in the photograph. Wikipedia

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NGC 1999, also known as The Cosmic Keyhole, is a dust-filled bright nebula with a vast hole of empty space represented by a black patch of sky, as can be seen in the photograph. Wikipedia

A dust filled bright nebula Wikipedia Disambiguation

reflection nebula in the constellation Orion Wikidata

IS A

interstellar medium

reflection nebula

H II region

PART OF

Orion molecular cloud complex

CONSTELLATION

Orion

DISCOVERER OR INVENTOR

Herschel