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The boundary of the solar systemThe shape of the boundary of the solar system, defined as the surface within which the gravitational attraction of the sun rather than that of the rest of the Galaxy controls the orbital motion of planets and comets, has been determined. Outside of this surface, the dominant factors are the radial tides due to the galactic center and the vertical tides caused by the galactic disk. Orbits which are direct with respect to the galactic plane have a boundary which differs from that for retrograde orbits, both being 10-20 percent oblate and both larger than the present Oort cloud. The surface may have been the boundary of the early cloud of comets which was later reduced by the passages of stars and molecular clouds.
Document ID
19840065105
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Smoluchowski, R. (Texas, University Austin, TX, United States)
Torbett, M. (Carnegie Institution of Washington Washington, DC, United States)
Date Acquired
August 12, 2013
Publication Date
September 6, 1984
Publication Information
Publication: Nature
Volume: 311
ISSN: 0028-0836
Subject Category
ASTRONOMY
Funding Number(s)
CONTRACT_GRANT: NSG-7505
Distribution Limits
Public
Copyright
Other