File talk:Orbit of Pluto's moon P4.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Not the real orbits[edit]

I really don't like this diagram, as the orbits can't be right. The moons are really orbiting the center of mass of Pluto+Charon, not Pluto itself. This is of course also true for Charon and Pluto.

This picture gives the illusion that Charon's mass could be neglected, while in fact it is big enough so that Pluton and Charon are actually circling a point between them. Apaprently others have made similar comments in language-specifi pages, and it may be why it is not used anymore in any english language pages.

It is something that also complicate the correct trajectory of New Horison flyby.

04:41, 8 July 2015 (UTC)