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3 votes

sun pointing coordinate system design

For a real mission, there would probably be more pointing constraints than just sun-pointing (likely for communication, thermal, or power reasons). However, for your purposes, you could do this: ...
Erin Anne's user avatar
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2 votes

sun pointing coordinate system design

To orient the ship to face the sun steadily, try the vector of the ship to the sun, and cross that with the velocity vector of the earth relative to the sun (not the ship relative to earth). ...
cubetronic's user avatar
38 votes

Person falling from space

Your question is under-specified (you don't give the size or posture of your subject), so I'm assuming an average-sized woman falling in the classic face-down skydiver posture. I'm also modeling this ...
Mark's user avatar
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