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how to illustrate the locus of the Mars observed from the earth?Note that the locus of planets are ellipse and their orbit lies on a different plane and the speed of the earth is faster than Mars

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I'm not even sure astronomy.SE will welcome this one... –  J. M. Oct 23 '11 at 21:22
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closed as off topic by Raskolnikov, Asaf Karagila, Did, J. M., t.b. Nov 3 '11 at 8:46

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1 Answer

Ignoring the possibility of trying to illustrate Mars crossing the sky in a night, the obvious thing to do is illustrate it as points and a curve against the fixed stars. Various examples are shown at Courtney Seligman's page, one of which is also on Wikipedia

enter image description here

Alternatively, you could do some like Kepler's chart (note the zodiac round the edge as the fixed stars) in this image from Wikipedia

enter image description here

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how beautiful that a simple animation makes the answer simply shine. –  user13838 Oct 23 '11 at 21:46
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