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Concept information

solar system > planet > protoplanet

Preferred term

protoplanet  

Definition(s)

  • A protoplanet is a large planetary embryo that originated within a protoplanetary disc and has undergone internal melting to produce a differentiated interior. Protoplanets are thought to form out of kilometer-sized planetesimals that gravitationally perturb each other's orbits and collide, gradually coalescing into the dominant planets. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Protoplanet)

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http://data.loterre.fr/ark:/67375/MDL-JXDZ7CSB-3

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