optical double

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English

Noun

optical double (plural optical doubles)

(astronomy) A star that appears as a double due to an optical illusion; in reality, the stars may be far apart from each other.

Translations

star that appears as a double due to an optical illusion

French: étoile double optique (fr) f
Irish: réalta dhúbailte optúil f
Japanese: 見かけの二重星 (mikake no nijūsei)

See also

visual binary

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