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  2. Orbit (dynamics) - Wikipedia

    en.wikipedia.org/wiki/Orbit_(dynamics)

    In mathematics, specifically in the study of dynamical systems, an orbit is a collection of points related by the evolution function of the dynamical system. It can be understood as the subset of phase space covered by the trajectory of the dynamical system under a particular set of initial conditions , as the system evolves.

  3. Bifurcation diagram - Wikipedia

    en.wikipedia.org/wiki/Bifurcation_diagram

    The bifurcation diagram shows the forking of the periods of stable orbits from 1 to 2 to 4 to 8 etc. Each of these bifurcation points is a period-doubling bifurcation. The ratio of the lengths of successive intervals between values of r for which bifurcation occurs converges to the first Feigenbaum constant.

  4. Circular motion - Wikipedia

    en.wikipedia.org/wiki/Circular_motion

    Therefore, the speed of travel around the orbit is = =, where the angular rate of rotation is ω. (By rearrangement, ω = v / r .) Thus, v is a constant, and the velocity vector v also rotates with constant magnitude v , at the same angular rate ω .

  5. Kepler's laws of planetary motion - Wikipedia

    en.wikipedia.org/wiki/Kepler's_laws_of_planetary...

    The Keplerian problem assumes an elliptical orbit and the four points: s the Sun (at one focus of ellipse); z the perihelion; c the center of the ellipse; p the planet; and = | |, distance between center and perihelion, the semimajor axis, = | |, the eccentricity,

  6. Newton's theorem of revolving orbits - Wikipedia

    en.wikipedia.org/wiki/Newton's_theorem_of...

    Proposition 43; Problem 30 Diagram illustrating Newton's derivation. The blue planet follows the dashed elliptical orbit, whereas the green planet follows the solid elliptical orbit; the two ellipses share a common focus at the point C. The angles UCP and VCQ both equal θ 1, whereas the black arc represents the angle UCQ, which equals θ 2 = k ...

  7. Retrograde and prograde motion - Wikipedia

    en.wikipedia.org/wiki/Retrograde_and_prograde_motion

    A celestial object's axial tilt indicates whether the object's rotation is prograde or retrograde. Axial tilt is the angle between an object's rotation axis and a line perpendicular to its orbital plane passing through the object's centre. An object with an axial tilt up to 90 degrees is rotating in the same direction as its primary.

  8. Orbital mechanics - Wikipedia

    en.wikipedia.org/wiki/Orbital_mechanics

    From a circular orbit, thrust applied in a direction opposite to the satellite's motion changes the orbit to an elliptical one; the satellite will descend and reach the lowest orbital point (the periapse) at 180 degrees away from the firing point; then it will ascend back. The period of the resultant orbit will be less than that of the original ...

  9. Orbit modeling - Wikipedia

    en.wikipedia.org/wiki/Orbit_modeling

    Orbit modeling is the process of creating mathematical models to simulate motion of a massive body as it moves in orbit around another massive body due to gravity.Other forces such as gravitational attraction from tertiary bodies, air resistance, solar pressure, or thrust from a propulsion system are typically modeled as secondary effects.