- positional astronomy
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astrometry.
* * *
Universalium. 2010.
positional astronomy
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positional astronomy — astrometry … Useful english dictionary
positional — adjective Date: 1571 1. of, relating to, or fixed by position < positional astronomy > 2. involving little movement < positional warfare > 3. dependent on position or environment or context < the front articulated k in kē key and the back… … New Collegiate Dictionary
astronomy — /euh stron euh mee/, n. the science that deals with the material universe beyond the earth s atmosphere. [1175 1225; ME astronomie ( < AF) < L astronomia < Gk. See ASTRO , NOMY] * * * I Science dealing with the origin, evolution, composition,… … Universalium
Spherical astronomy — or positional astronomy is the branch of astronomy that is used to determine the location of objects on the celestial sphere, as seen at a particular date, time, and location on the Earth. This is one of the oldest branches of astronomy. It… … Wikipedia
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
Theoretical astronomy — Nucleosynthesis Stellar nucleosynthesis Big Bang nucleosynthesis Supernova nucleosynthesis Cosmic ray spallation … Wikipedia
Opposition (astronomy and astrology) — Opposition is a term used in positional astronomy and astrology to indicate when one celestial body is on the opposite side of the sky when viewed from a particular place (usually the Earth). In particular, two planets are in opposition to each… … Wikipedia
X-ray astronomy — X rays start at 0.008 nm and extend across the electromagnetic spectrum to 8 nm, over which the Earth s atmosphere is opaque. X ray astronomy is an observational branch of astronomy which deals with the study of X ray observation and detection… … Wikipedia
Opposition (planets) — In positional astronomy, two celestial bodies are said to be in opposition when they are on opposite sides of the sky, viewed from a given place (usually the Earth). In particular, two planets are in opposition to each other when their ecliptic… … Wikipedia
Bessel, Friedrich Wilhelm — born July 22, 1784, Minden, Brandenburg died March 17, 1846, Königsberg, Prussia German astronomer. He was the first to measure (by means of parallax) the distance to a star other than the Sun. One of his major discoveries was that the bright… … Universalium
