Biographical Encyclopedia of Astronomers

2014 Edition
| Editors: Thomas Hockey, Virginia Trimble, Thomas R. Williams, Katherine Bracher, Richard A. Jarrell, Jordan D. MarchéII, JoAnn Palmeri, Daniel W. E. Green

Safronov, Viktor Sergeyevich

  • Thomas Hockey
Reference work entry

BornVelikiye Luki, Russia, 11 October 1917


Russian solar-system cosmogonist Viktor Safronov was a protégé of  Otto Schmidt. In his 1968 Evolution of the Protoplanetary Cloud and the Formation of the Earth and Planets, Safronov quantified the theory for planetary formation from the accumulation of planetesimals, an idea generally attributed to  Thomas Chamberlin and  Forest Moulton around 1900. The Safronov theory includes the evolution of the planet’s mass, obliquity, and temperature as a function of the rate of accretion.

Selected Reference

  1. Burns, Joseph A., Jack J. Lissauer and Andrei Makalkin (2000). “In Memoriam: Victor Sergeyevich Safronov (1917–1999).” Icarus 145: 1–3.ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Department of Earth ScienceUniversity of Northern IowaCedar FallsUSA