system
Given the following post, respond as if you're commenting on Reddit:
human
Is the night sky noticeably different on Mars?

I know the stars are crazy far away, but 140 million miles between vantage points seems like it might not be wholly insubstantial.

Would the constellations be familiar? Unrecognizable? Slightly distorted? A combination?
gpt
The biggest noticeable difference would be the absence of Mars and Luna in the sky and the addition of Earth, Phobos and Deimos. The position of Jupiter, Saturn, Venus etc against the constellations would also be noticeably different. The shape of the constellations would look identical, although Polaris wouldn't be the North Star on Mars. Mars' North Pole points to a point in the sky about midway between Deneb and Alderamin, and the South Pole points near a star called Kappa Velorum.

Edit: Editing to add that Phobos and Deimos appear to move across the sky in opposite directions. Phobos appears to rise in the West and set in the East and it moves so fast that you could see it rise twice in one night. Deimos on the other hand, moves very slowly across the sky and takes almost 3 sols to cross the sky from East to West.