Talk:Astrodynamics

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To-do list for Astrodynamics: edit  · history  · watch  · refresh
  • Historical approaches
    • Show how Kepler's laws and conservation laws can be derived from first principles
  • Perturbation theory
    • Variation of parameters
    • Direct f=ma for perturbations
  • Universal variable formulation
    • Who developed it?
    • Description
    • Pseudocode?
  • Expand on non-ideal orbits
  • post an image of a planets "B" plane and the Ellipse ( aim point) that a space craft must fly through to arrive at its next Destination or to achive a hyberbolic orbit.
  • Add a discussion of applicable numerical methods. Sdsds 17:27, 27 March 2007 (UTC)

[edit] From PNA/Physics (historical)

Astrodynamics#Historical_approaches: needs to be re-written. Just throwing in names of famous scientists in history is useless. -- PFHLai 23:04, 2004 Oct 22 (UTC)

Yep. That's why this article has a todo list. --P3d0 19:54, 26 September 2006 (UTC)

[edit] Orbital mechanics

Orbital mechanics redirects here, but surely it would be better off redirecting to celestial mechanics? It seems more likely to me that somebody researching it would want to know about orbits in general, not just artificial ones. JulesH 11:24, 26 September 2006 (UTC)

[edit] Neat little law:

This is something about orbits I read a little while back, that might be appropriate in this article:

In order to slow down, you speed up; to speed up, you slow down.

Slowing down puts you into a lower orbit, which is faster in relation to a point on the surface of the body you are orbiting around. Speeding up puts you into a higher orbit, which is slower in relation to the aforementioned point.

Can anyone think of a place to put this?

Phædrus 12:01, 20 March 2007 (UTC)

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