Also found in: Dictionary, Thesaurus.
planetesimal theory(plăn'ĭtĕs`əməl): see solar systemsolar system,
the sun and the surrounding planets, natural satellites, dwarf planets, asteroids, meteoroids, and comets that are bound by its gravity. The sun is by far the most massive part of the solar system, containing almost 99.9% of the system's total mass.
..... Click the link for more information. .
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
planetesimal theory(plan-ĕ-tess -ă-măl) See encounter theories.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006