why does the iss move through the sky really quickly yet planets further out barely seem to move?
In: Physics
Ignore the first commenter.
The ISS is not stationary. That is; its orbiting (flying around earth) at around 17,000 kmph.
The stars are basically stationary. Our frame of reference makes them appear to move as we’re spinning around on this rock earth at around 1600kmph.
However, depending on your location and which stars you’re observing; some stars will hardly ‘move’ at all (such as the north star).
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