Image:Orbit.png

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Orbit.png‎ (7KB, MIME type: image/png)

Orbital parametres, illustrated.

Drawn by myself and herewith assigned to the public domain.

Caveat: The mean anomaly shown is not strictly correct. This orbital element is actually an abstraction: it is 360° times the object's time since perihelion divided by its orbital period. It will correspond to the true anomaly shown here only for a perfectly circular orbit.

Other version derived from it: commons:Image:Orbit.svg


Public domain

I, the creator of this work, hereby release it into the public domain. This applies worldwide.
In case this is not legally possible,
I grant any entity the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Important matter:

I believe that this image is wrong. The error consists on calling mean anomaly M to what it is called true anomaly V. The mean anomaly goes from the center of the ellipse and it doesn't arrive at the planet but to the fictitious body that moves uniformly. If something parts from the primary one and it arrives at the secondary one, the angle with the periapsis cannot be other thing that the true anomaly. I suggest to correct this image or to use Image:Orbital elements.svg that doesn't have that error. There are many wikipedias that use this image in multiple articles like the English (en) and Catalan (ca). [http:es.wikipedia.org/Usuario:xgarciaf] july 24, 2006

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