Low Lunar Orbit
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Low Earth orbit — An orbiting cannon ball showing various sub orbital and orbital possibilities … Wikipedia
Lunar orbit — In astronomy, lunar orbit (also known as a Selenocentric orbit) refers to the orbit of an object around the Moon.As used in the space program, this refers not to the orbit of the Moon about the Earth, but to orbits by various manned or unmanned… … Wikipedia
Lunar Escape Systems — were a series of emergency vehicles designed for never flown long duration Apollo missions. Because these missions were even more hypothetical than the planned canceled Apollo missions, the designs were never constructed.As NASA planned for… … Wikipedia
Low energy transfers — Low energy transfers, or low energy trajectories, are routes in space which allow spacecraft to change orbits using very little fuel. These routes work in other systems, such as traveling between the satellites of Jupiter. The drawback of such… … Wikipedia
Lunar Prospector — LunarOrbiter Name=Lunar Prospector Organization=NASA Contractors=Discovery Program MissionType=Planetary Science LaunchDate=January 7, 1998 at 02:28:44 UTC LaunchVehicle=Athena II MissionHighlight=Entered lunar orbit January 11, 1998, 10:28 UTC… … 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
Lunar standstill — At a major lunar standstill, which takes place every 18.6 years, the range of the declination of the Moon reaches a maximum. As a result, at high latitudes, the Moon appears to move in just two weeks from high in the sky to low on the horizon.… … Wikipedia
Lunar space elevator — A lunar space elevator (also called a moonstalk) is a proposed cable running from the surface of the Moon into space.It is similar in concept to the better known Earth space elevator idea (a cable suspended above Earth, with its center of gravity … Wikipedia
Lunar Orbiter 4 — Infobox Spacecraft Name= Lunar Orbiter 4 Organization=NASA Major Contractors= Langley Research Center Mission Type=Orbiter Satellite Of= Moon Launch= May 4, 1967 at 22:25:00 UTC Launch Vehicle= Atlas Agena D Decay= Impacted lunar surface no later … Wikipedia
Lunar Module — Module lunaire Apollo Pour les articles homonymes, voir LEM et LM. Module lunaire du programme Apollo … Wikipédia en Français
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
