earth-orbit escape
31Circular orbit — For other meanings of the term orbit , see orbit (disambiguation) A circular orbit is the orbit at a fixed distance around any point by an object rotating around a fixed axis. Below we consider a circular orbit in astrodynamics or celestial… …
32Lunar 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… …
33Sun-synchronous orbit — Diagram showing the orientation of a Sun synchronous orbit (green) in four points of the year. A non sun synchronous orbit (magenta) is also shown for reference A Sun synchronous orbit (sometimes called a heliosynchronous orbit) is a geocentric… …
34Molniya orbit — For other uses, see Molniya (disambiguation). Figure 1: The Molniya orbit. Usually the period from perigee + 2 hours to perigee + 10 hours is used to transmit to the northern hemisphere Molniya orbit is a type of highly elliptical orbit with an… …
35Elliptic orbit — A small body in space orbits a large one (like a planet around the sun) along an elliptical path, with the large body being located at one of the ellipse foci …
36Heliocentric orbit — A heliocentric orbit (also called circumsolar orbit) is an orbit around the Sun. All planets, comets, and asteroids in our Solar System are in such orbits, as are many artificial probes and pieces of debris. The moons of planets in the Solar… …
37Capture orbit — A capture orbit is a reverse escape orbit. It is a parabolic orbit with as special case a straight line in the direction of the center of the central body. If it intersects the central body or its atmosphere the object will crash into the central …
38List of recurring Earth characters in Stargate SG-1 — This is a list of recurring characters from Earth in the science fiction television show Stargate SG 1. Contents 1 Stargate Command personnel 1.1 Kevin Elliot 1.2 Janet Fraiser 1.3 …
39Properties of the Moon and the Earth-Moon system — ▪ Table Properties of the Moon and the Earth Moon system Moon Earth approximate ratio (Moon to Earth) mean distance from Earth (orbital radius) 384,400 km period of orbit around Earth (sidereal period of revolution) 27.3217 Earth days inclination …
40From the Earth to the Moon — This article is about the Jules Verne novel. For the 1958 film adaptation, see From the Earth to the Moon (film). For the unrelated miniseries, see From the Earth to the Moon (TV miniseries). From the Earth to the Moon   …
