Submitted by György Chityil ... on Fri, 01/19/2018 - 22:09 Hierarchy: NounDescription: {{star}} A star that appears as a double due to an optical illusion; in reality, the stars may be far apart from each other.Ngram: optical doubleNgram Text: optical doubleSource: WiktionaryIssue: 0Wiktionary tag: starNgram Count: 2