soviet astronomer victor safronov was the geologist who developed a planetesimal hypothesis that was a precursor to the modern model of the solar nebular disk.
soviet astronomer victor safronov was the geologist who developed a planetesimal hypothesis that was a precursor to the modern model of the solar nebular disk.
which geologist developed a planetesimal hypothesis that was a precursor to the modern model of the solar nebular disk?
soviet astronomer victor safronov
chamberlin–moulton planetesimal hypothesis









































the chamberlin–moulton planetesimal hypothesis was proposed in 1905 by geologist thomas chrowder chamberlin and astronomer forest ray moulton to describe the formation of the solar system. it was proposed as a replacement for the laplacian version of the nebular hypothesis that had prevailed since the 19th century.
chamberlin–moulton planetesimal hypothesis
the nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the solar system (as well as other planetary systems). it suggests that the solar system is formed from the nebulous material. the theory was developed by immanuel kant and published in his "allgemeine naturgeschichte und theorie des himmels" ("universal natural history and theory of the heavens"), published in 1755. originally applied to the solar system, the process of planetary system formation is now thought to be at work throughout the universe. the widely accepted modern variant of the nebular hypothesis is the solar nebular disk model (sndm) or solar nebular model. it offered explanations for a variety of properties of the solar system, including the nearly circular and coplanar orbits of the planets, and their motion in the same direction as the sun's rotation. some elements of the original nebular hypothesis are echoed in modern theories of planetary formation, but most elements have been superseded.
nebular hypothesis