planetocentric system
1planetocentric — adjective Based on a planet at the centre of a coordinate system …
2Longitude — For Dava Sobel s book about John Harrison, see Longitude (book). For the adaptation of Sobel s book, see Longitude (TV series). Map of Earth Longitude (λ) Lines of longitude appear vertical with varying curvature in this projection, but are… …
3Reference ellipsoid — In geodesy, a reference ellipsoid is a mathematically defined surface that approximates the geoid, the truer figure of the Earth, or other planetary body.Because of their relative simplicity, reference ellipsoids are used as a preferred surface… …
4Géologie de la planète Mars — La géologie de la planète Mars, parfois appelée aréologie[1], recouvre l étude scientifique de Mars et de ses propriétés physiques, de ses reliefs, de sa composition, de son histoire, et de tous les phénomènes qui ont affecté ou affectent encore… …
5Timekeeping on Mars — Various schemes have been used or proposed to keep track of time and date on the planet Mars independently of Earth time and calendars. Mars has an axial tilt and a rotation period similar to those of Earth. Thus it experiences seasons of spring …
6Volcanisme sur Mars — Trois volcans dans la région du dôme de Tharsis Le volcanisme de la planète Mars serait apparu il y a près de quatre milliards d années[1], à la fin du Noachien après le grand bombarde …
7Viking 1 — Infobox Spacecraft Name = Viking 1 Orbiter Caption = Viking orbiter Organization = NASA Major Contractors = Mission Type = Orbiter Satellite Of = Mars Orbital Insertion Date = June 19 1976 Launch = August 20 1975 Launch Vehicle = Titan… …
8List of mountains on Mars — This is a list of all named mountains on Mars.* Mons refers to a large, isolated, mountain. * Montes is the plural of mons and refers a mountain range. * Tholus refers to a small dome shaped mountain. * Tholi is the plural of tholus and refers to …
9Stretched exponential function — Figure 1. Illustration of a stretched exponential fit (with β=0.52) to an empirical master curve. For comparison, a least squares single and a double exponential fit are also shown. The data are rotational anisotropy of anthracene in… …
10J. Marvin Herndon — (b. 1944) is an American interdisciplinary scientist, who earned his BA degree in physics in 1970 from the University of California, San Diego and his Ph.D. degree in nuclear chemistry in 1974 from Texas A M University. For three years, J. Marvin …
