Other
Scientific paper
Apr 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995fizb....4...11r&link_type=abstract
Fizika B, Vol. 4, No. 1, p. 11 - 28
Other
1
Terrestrial Planets: Orbital Evolution, Jovian Planets: Orbits, Planets: Formation
Scientific paper
The semimajor axes of planetary orbits and of major satellites of the planets in the solar system are described by a simple parabolic law, rn = const×n2, where n is an integer. The orbital periods Tn are proportional to n3, thus obeying the third Kepler's law. The radical change, compared with the previous approaches, is that n = 1 is assigned to all terrestrial planets, n = 2 to Jupiter, etc. This is strongly suggested by the analysis of astronomical data. Hence, terrestrial planets are considered as a subgroup of Jovian planets, and have been formed between the Sun and Jupiter in place of one giant planet of the Jovian group. The reason seems to be the temperature limit of about 200K, corresponding to a distance of about 5×1011m (3.4 a.u.), that causes similar consequences as the well-known Roche limit for satellites of a planet. Relationships for rn, Tn and other relevant quantities, which also depend on the integer n, are related to the discretization of angular momentum per unit mass of orbiting body. The mass of a central body appears as a scaling factor giving a unique approach to all systems. The mean deviation of observed orbital radii from the parabolic law for rn is from 3.5% to 7.6%, depending on the system. On the basis of the analysis, we propose the hypotheses on stability of gravitationally-bound many-body systems.
Rubčić A.
Rubčić J.
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