Astronomy questions about Mars and Earth?

C

celia

New member
Let's assume for simplicity that the orbital plane of Mars is the same as the orbital plane of Earth, and the angle between its rotational axis and revolution axis is 25°. For observers on Mars, is their north celestial pole same as ours? Is their ecliptic same as ours? Are their zodiac same as ours? Can they observe retrograde motion of the Earth?
 
The celestial pole on Mars is nowhere near Polaris, because Mars' polar axis is oriented differently than Earth's. The ecliptic is more or less the same, so the zodiac constellations are the same. There will be the same retrograde motions visible as we see with Venus.
 
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