The inclination of planetary orbits around Vega is likely to be closely aligned to the equatorial plane of this star.
22.
To Kepler the Sun is not in the center of the elliptical planetary orbit, but rather at a focal point.
23.
Johannes Kepler was the first to successfully model planetary orbits to a high degree of accuracy, publishing his laws in 1605.
24.
Therefore, the observed slow rotation of the apsides of planetary orbits suggest that the force of gravity is an inverse-square law.
25.
Unable to land, heighliners jump from point to point, parking in planetary orbits, though the ship itself does not technically move.
26.
Similarly, neither is there the evidence of planetary orbit pointers for the five planets known to the Greeks among the ruins.
27.
Of course, most real-world systems, including planetary orbits, eventually become theoretically unpredictable even using Newtonian dynamics; as discovered by modern chaos theory.
28.
However, scientists are able to calculate planetary orbits very accurately, which means there cannot be a nearby large gravitational source unaccounted for.
29.
See Orbit-this is about planetary orbit, which is what I learned in Physics but I think it's applicable in this situation too.
30.
In celestial mechanics, he found improved methods to deduce a planetary orbit from observations, and analysed the mathematics of perturbations in planetary motions.
