conjunction in right ascension

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• Conjunction (astronomy and astrology) — Conjunction of Mercury and Venus, align above the Moon, at the Paranal Observatory. Conjunction is a term used in positional astronomy and astrology. It means that, as seen from some place (usually the Earth), two celestial bodies appear near one …   Wikipedia

• Conjunction — Con*junc tion, n. [L. conjunctio: cf. F. conjunction. See {Conjoin}.] 1. The act of conjoining, or the state of being conjoined, united, or associated; union; association; league. [1913 Webster] He will unite the white rose and the red: Smille… …   The Collaborative International Dictionary of English

• conjunction — /kənˈdʒʌŋkʃən / (say kuhn jungkshuhn) noun 1. the act of conjoining; combination. 2. the state of being conjoined; union; association. 3. a combination of events or circumstances. 4. Grammar a. (in some languages) one of the major form classes,… …  

• Triple conjunction — A triple conjunction is an astronomical event, where two planets or a planet and a star meet each other three times in a short period either in opposition or at the time of inferior conjunction, if an inferior planet is involved. The visible… …   Wikipedia

• Great conjunction — A Great Conjunction (also known as a Grand Conjunction) is a conjunction of the planets Jupiter and Saturn. The last Great Conjunction took place on May 31, 2000, while the next one will be in late December of 2020. Great Conjunctions take place… …   Wikipedia

• SN 1054 — Supernova SN 1054 The Crab Nebula, remnant of SN 1054. Credit: NASA/ESA. Observation data (Epoch ?) Supernova type …   Wikipedia

• telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …   Universalium

• Alpha Centauri — This article is about α Centauri . For a Centauri , see V761 Centauri. For A Centauri , see A Centauri. For other uses, see Alpha Centauri (disambiguation). Alpha Centauri A[1]/B[2] …   Wikipedia

• Longitude — For Dava Sobel s book about John Harrison, see Longitude (book). For the adaptation of Sobel s book, see Longitude (TV series). Map of Earth Longitude (λ) Lines of longitude appear vertical with varying curvature in this projection, but are… …   Wikipedia

• Aberration of light — Light from location 1 will appear to be coming from location 2 for a moving telescope due to the finite speed of light, a phenomenon known as the aberration of light. The aberration of light (also referred to as astronomical aberration or stellar …   Wikipedia

• Chinese astronomy — The Dunhuang map from the Tang Dynasty (North Polar region). This map is thought to date from the reign of Emperor Zhongzong of Tang (705–710). Founded in Dunhuang, Gansu. Constellations of the three schools were distinguished with different… …   Wikipedia