retrograde orbit

См. также в других словарях:

• retrograde orbit of a satellite — atgalinė palydovo orbita statusas T sritis radioelektronika atitikmenys: angl. retrograde orbit of a satellite vok. Satellitenrückbahn, f rus. обратная орбита спутника, f pranc. orbite rétrograde d un satellite, f …   Radioelektronikos terminų žodynas

• Artificial satellites in retrograde orbit — Artificial satellites are rarely placed in retrograde orbit. This is partly due to the extra velocity required to go against the direction of the rotation of the earth. ExamplesIsrael has successfully launched five Shavit satellites in retrograde …   Wikipedia

• Retrograde motion — This article is about retrograde motions of celestial bodies relative to a gravitationally central object. For the apparent motion as seen from a particular vantage point, see Apparent retrograde motion. Retrograde orbit: the satellite (red)… …   Wikipedia

• Retrograde and direct motion — Direct motion is the motion of a planetary body in a direction similar to that of other bodies within its system, and is sometimes called prograde motion. Retrograde motion is motion in the opposite direction. In the case of celestial bodies,… …   Wikipedia

• retrograde motion — In astronomy, the actual or apparent motion of a body in a direction opposite to that of the predominant (direct or prograde) motions of similar bodies. Observationally and historically, retrograde motion refers to the apparent reversal of the… …   Universalium

• retrograde — I. adjective Etymology: Middle English, from Latin retrogradus, from retrogradi Date: 14th century 1. a. (1) having or being motion in a direction contrary to that of the general motion of similar bodies and especially east to west among the… …   New Collegiate Dictionary

• retrograde — [re′trə grād΄] adj. [ME < L retrogradus < retrogradi, to go backward: see RETRO & GRADE] 1. moving or directed backward; retiring or retreating 2. inverse or reverse: said of order 3. going back or tending to go back to an earlier, esp.… …   English World dictionary

• Orbit — This article is about orbits in celestial mechanics, due to gravity. For other uses, see Orbit (disambiguation). A satellite orbiting the Earth has a tangential velocity and an inward acceleration …   Wikipedia

• Orbit of the Moon — Not to be confused with Lunar orbit in the sense of a selenocentric orbit, that is, an orbit around the Moon The Moon completes its orbit around the Earth in approximately 27.3 days (a sidereal month). The Earth and Moon orbit about their… …   Wikipedia

• Orbit equation — In astrodynamics an orbit equation defines the path of orbiting body around central body relative to , without specifying position as a function of time. Under standard assumptions, a body moving under the influence of a force, directed to a… …   Wikipedia

• Rétrograde (astronomie) — On dit d un objet du système solaire qu il a un mouvement rétrograde s il effectue une révolution autour de son corps de référence (par exemple le Soleil pour les planètes dans un repère héliocentrique, planètes pour les satellites) dans le sens… …   Wikipédia en Français