Submitted by György Chityil ... on Fri, 01/19/2018 - 23:26 Hierarchy: NounDescription: {{physics|astronomy}} A unit of brightness (of the sky at night) equal to 10<sup>10</sup>/4? quanta per square meter per second per steradianNgram: rayleighNgram Text: rayleighSource: WiktionaryIssue: 0Wiktionary tag: physicsastronomyNgram Count: 1
