white nebula

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English

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Etymology

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white + nebula

Noun

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white nebula (plural white nebulae)

  1. (astronomy, obsolete) a nebula that appears white in colouration through a high-powered telescope (nebulae often appear to have some hint of colour through a powerful telescope, but white when not using a powerful instrument); these nebulae were generally to be determined to be galaxies in the 20th century

Coordinate terms

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