libration
81Science and mathematics from the Renaissance to Descartes — George Molland Early in the nineteenth century John Playfair wrote for the Encyclopaedia Britannica a long article entitled ‘Dissertation; exhibiting a General View of the Progress of Mathematics and Physical Science, since the Revival of Letters …
82libraţie — LIBRÁŢIE, libraţii, s.f. (astron.) Mişcare aparentă, de uşoară balansare a lunii faţă de poziţia sa mijlocie, care permite observarea de pe pământ a ceva mai mult de jumătate din suprafaţa lunară. – Din fr. libration. Trimis de LauraGellner,… …
83Lagrangian point — The Lagrangian points (IPA en|ləˈgreɪndʒiən, IPA fr|lagʁɑ̃ʒjɑ̃; also Lagrange point, L point, or libration point), are the five positions in an orbital configuration where a small object affected only by gravity can theoretically be stationary… …
84Orbital resonance — For the science fiction novel by John Barnes, see Orbital Resonance (novel). In celestial mechanics, an orbital resonance occurs when two orbiting bodies exert a regular, periodic gravitational influence on each other, usually due to their… …
85Joseph Louis Lagrange — Lagrange redirects here. For other uses, see Lagrange (disambiguation). Joseph Louis Lagrange Joseph Louis (Giuseppe Lodovico), comte de Lagrange …
86Interplanetary Transport Network — The Interplanetary Transport Network (ITN) [Ross, S. D. 2006 [http://dx.doi.org/10.1511/2006.59.994 The Interplanetary Transport Network] . American Scientist 94:230 237.] is a collection of gravitationally determined pathways through the solar… …
87James Webb Space Telescope — General information Organization NASA[1], with significant contributions from ESA and CSA …
88MESSENGER — This article is about the NASA space mission. For other uses, see Messenger. MESSENGER Artist s rendering of MESSENGER orbiting Mercury. Operator NASA / APL Major contractors APL …
89Geocentric orbit — Earth orbit redirects here. For the motion of the Earth around the Sun, see Earth s orbit. Earth orbiter redirects here. For the shuttle simulator, see Earth Orbiter 1. The following words may have more than one definition or other non Earth… …
90Xenoarchaeology — is a hypothetical form of archaeology concerned with the physical remains of past (but not necessarily extinct) alien cultures. These may be found on planets or satellites, in space, the asteroid belt, planetary orbit or Lagrangian… …
