docking axis
71Places in The Hitchhiker's Guide to the Galaxy — Hitchhiker s portal This is a list of places featured in Douglas Adams s science fiction series, The Hitchhiker s Guide to the Galaxy. The series is set in a fictionalised version of the Milky Way galaxy and thus, while most locations are pure… …
72Mean longitude — In astrodynamics or celestial dynamics, mean longitude is the longitude at which an orbiting body could be found if its orbit were circular, and free of perturbations, and if its inclination were zero. Both the mean longitude and the true… …
73Non-inclined orbit — A non inclined orbit is an orbit which is contained in the plane of reference. The inclination is 0 for prograde orbits, and π (180°) for retrograde orbits. If the plane of reference is the equator, these orbits are called equatorial; if the… …
74Orbital eccentricity — This article is about eccentricity in astrodynamics. For other uses, see Eccentricity (disambiguation). An elliptic Kepler orbit with an eccentricity of 0.7 (red), a parabolic Kepler orbit (green) and a hyperbolic Kepler orbit with an… …
75Graveyard orbit — A graveyard orbit, also called a supersynchronous orbit, junk orbit or disposal orbit, is an orbit significantly above synchronous orbit, where spacecraft are intentionally placed at the end of their operational life. It is a measure performed in …
76Heliocentric 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… …
77Osculating orbit — In astronomy, and in particular in astrodynamics, the osculating orbit of an object in space (at a given moment of time) is the gravitational Kepler orbit (i.e. ellipse or other conic) that it would have about its central body (corresponding to… …
78History of the Royal Australian Navy — The History of the Royal Australian Navy can be traced back to 1788 and the colonisation of Australia by the British. During the period until 1859, vessels of the Royal Navy made frequent trips to the new colonies. In 1859, the Australia Squadron …
79Venus Equilateral — The Venus Equilateral series is a set of 13 science fiction short stories by George O. Smith, concerning the Venus Equilateral Relay Station, an interplanetary communications hub located at the L4 Lagrangian point of the Sun Venus system. Most of …
80Oberth effect — In astronautics, the Oberth effect is where the use of a rocket engine when travelling at high speed generates much more useful energy than one at low speed. Oberth effect occurs because the propellant has more usable energy (due to its kinetic… …
