- perihelion distance
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English-russian astronautics dictionary. - M.: Military Publishing house. Compiled by F. P. Suprun, K. V. Shirokov. 1964.
perihelion distance
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Perihelion (jeu vidéo) — Pour les articles homonymes, voir Perihelion. Perihelion Éditeur Psygnosis Développeur Morbid Visions Date de sortie 1993 … Wikipédia en Français
mean distance — noun the arithmetic mean of the maximum and minimum distances of a celestial body (satellite or secondary star) from its primary • Hypernyms: ↑distance * * * noun : the arithmetical mean of the maximum and minimum distances of a planet, satellite … Useful english dictionary
Comet Hale–Bopp — C/1995 O1 (Hale–Bopp) Discovery Discovered by: Alan Hale and Thomas Bopp Discovery date: July 23, 1995 Alternate designations: The Great Comet of … Wikipedia
comet — cometary /kom i ter ee/, cometic /keuh met ik/, cometical, adj. cometlike, adj. /kom it/, n. Astron. a celestial body moving about the sun, usually in a highly eccentric orbit, consisting of a central mass surrounded by an envelope of dust and… … Universalium
celestial mechanics — the branch of astronomy that deals with the application of the laws of dynamics and Newton s law of gravitation to the motions of heavenly bodies. [1815 25] * * * Branch of astronomy that deals with the mathematical theory of the motions of… … Universalium
asteroid — asteroidal, adj. /as teuh royd /, n. 1. Also called minor planet. Astron. any of the thousands of small bodies of from 480 miles (775 km) to less than one mile (1.6 km) in diameter that revolve about the sun in orbits lying mostly between those… … Universalium
Apsis — For the architectural term, see Apse. Aphelion and Perihelion redirect here. For Edenbridge s Album, see Aphelion (album). Apogee and Perigee redirect here. For the literary journal, see Perigee: Publication for the Arts. For other uses, see… … Wikipedia
Kreutz Sungrazers — The Kreutz Sungrazers (pronEng|ˈkrɔɪts) are sungrazing comets of a particular family. They are believed to be fragments of one large comet that broke up several centuries ago and are named for the astronomer Heinrich Kreutz, who first… … Wikipedia
Solar sail — Solar sails (also called light sails or photon sails, especially when they use light sources other than the Sun) are a proposed form of spacecraft propulsion using large membrane mirrors. Radiation pressure is about 10 5 Pa at Earth s distance… … Wikipedia
Comet Arend–Roland — C/1956 R1 (Arend–Roland) Discovery Discovered by: Sylvain Arend, Georges Roland Discovery date: 1956 Alternate designations: 1957 III, 1956h, C/1956 R1 … Wikipedia
96P/Machholz — as seen by STEREO A in April 2007 Discovery Discovered by: Donald Machholz Discovery date: 1986 Alternate designations: 96P, Machholz … Wikipedia
