accretion disc
111Oxygen-burning process — The oxygen burning process is a set of nuclear fusion reactions that take place in massive stars that have used up the lighter elements in their cores. It occurs at temperatures around 1.5×109 K / 130 keV and densities of 1010 kg/m3. The… …
112Formation and evolution of the Solar System — Artist s conception of a protoplanetary disk The formation and evolution of the Solar System is estimated to have begun 4.568 billion years ago with the gravitational collapse of a small part of a giant molecular cloud …
113Planet — This article is about the astronomical object. For other uses, see Planet (disambiguation) …
114History of Solar System formation and evolution hypotheses — Capture theory redirects here. For the solar capture theory, see this article s section on Solar System formation. For the lunar capture theory, see this article s section on lunar formation. Ideas concerning the origin and fate of the world date …
115Kuiper belt — Known objects in the Kuiper belt, derived from data from the Minor Planet Center. Obje …
116Planetary migration — occurs when a planet or other stellar satellite interacts with a disk of gas or planetesimals, resulting in the alteration of the satellite s orbital parameters, especially its semi major axis. The generally accepted theory of planet formation… …
117Formation et évolution du système solaire — Vue d artiste d un disque protoplanétaire. La formation et l évolution du système solaire sont déterminées par un modèle aujourd hui très largement accepté et connu sous le nom d « hypothèse de la nébuleuse solaire ». Ce modèle fut… …
118Oort cloud — An artist s rendering of the Oort cloud and the Kuiper belt (inset). Sizes of individual objects have been exaggerated for visibility …
119Nebular hypothesis — Star formation Interstellar medium Molecular cloud …
120Solar System — This article is about the Sun and its planetary system. For other systems, see planetary system and star system. For a list of physical and orbital statistics for the Solar System s largest bodies, see List of gravitationally rounded objects of… …
