planetary orbit


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planetary orbit

[′plan·ə‚ter·ē ′ȯr·bət]
(astronomy)
The path that a planet has as it revolves about the sun.
References in periodicals archive ?
Why there are stable planetary orbits and electronic ones, and how are they formed at all?
The initial plan involved having the car orbit an area between the Mars and Earth planetary orbits.
1 percent per 10 billion years, causing the planetary orbits to shift by 1.
That would cause the sun's gravitational pull to reduce enough for planetary orbits in the solar system to increase by about half an inch (1.
When planetary orbits were finally deciphered in recent history, it became clear that Venus and Mercury had smaller orbits inside the Earth's orbit, which caused their retrograde loops.
He further added that their results demonstrated that the necessary conditions exist to modify planetary orbits and that these conditions were present at the time of planet formation, apparently due to the binary formation process.
Watch an animation of stable planetary orbits versus wacky stellar orbits at skypub.
The models the researchers built allowed them to adjust the tilt of the planetary orbits, the lean in the axes of rotation, and the ability of the terrestrial planet's atmosphere to let in light.
The chapters take up only a bit over 200 pages, and the bulk of the volume is devoted to appendices of technical information on such matters as virial theory, the formation of commensurate planetary orbits, perturbations of the Oort Cloud, global warming, and physical constants and useful data.
According to the analysis, the planetary orbits are very nearly coplanar and circular, reminiscent of the orderly arrangement of orbits in our solar system.
Tycho settled in Prague, where he met Johannes Kepler, who had fled religious turmoil in Austria where he struggled with aligning Plato's perfect shapes and musical scales with the planetary orbits.
Successive breakthroughs in the natural sciences gave rise to a system of graphical schema to represent the natural order--whether the planetary orbits around the sun, the life cycle of plants, or the double-helix structure of DNA.

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