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We found 32 dictionaries with English definitions that include the word right ascension: Click on the first link on a line below to go directly to a page where "right ascension" is defined. General (19 matching dictionaries) right ascension: American Heritage Dictionary of the English Language [home, info] right ascension: Collins English Dictionary [home, info] right ascension: Vocabulary.com [home, info] right ascension: Merriam-Webster's Online Dictionary, 11th Edition [home, info] right ascension: Wordnik [home, info] right ascension: Wiktionary [home, info] right ascension: Compact Oxford English Dictionary [home, info] right ascension: The Wordsmyth English Dictionary-Thesaurus [home, info] right ascension: Infoplease Dictionary [home, info] right ascension: Dictionary.com [home, info] right ascension: UltraLingua English Dictionary [home, info] Right Ascension: Wikipedia, the Free Encyclopedia [home, info] right ascension: Rhymezone [home, info] Right Ascension: 1911 edition of the Encyclopedia Britannica [home, info] right ascension: Free Dictionary [home, info] right ascension: Mnemonic Dictionary [home, info] right ascension: WordNet 1.7 Vocabulary Helper [home, info] right ascension: LookWAYup Translating Dictionary/Thesaurus [home, info] right ascension: Dictionary/thesaurus [home, info] Computing (1 matching dictionary) right ascension: Encyclopedia [home, info] Medicine (1 matching dictionary) right ascension: Medical dictionary [home, info] Science (6 matching dictionaries) Right ascension: From Stargazers to Starships Glossary [home, info] Right Ascension: Eric Weisstein's World of Astronomy [home, info] Right Ascension: Imagine the Universe! Dictionary [home, info] right ascension: Mars Glossary [home, info] Right Ascension: Extragalactic Astronomy [home, info] RIGHT ASCENSION: Zoom Astronomy Glossary [home, info] Tech (5 matching dictionaries) Right Ascension: High-Energy Astrophysics [home, info] Right Ascension: Basics of Space Flight Glossary [home, info] right ascension: Glossary of Meteorology [home, info] Right Ascension: National Weather Service Glossary [home, info] right ascension: SOLAR-TERRESTRIAL TERMS [home, info]

Quick definitions from WordNet (right ascension) ▸ noun:  an arc of the celestial equator eastward from the vernal equinox ▸ noun:  (astronomy) the angular distance eastward along the celestial equator from the vernal equinox to the intersection of the hour circle that passes through the body; expressed in hours and minutes and second; used with declination to specify positions on the celestial sphere ("One hour of right ascension equals fifteen degrees")