the.com/planetary rotation
a planet spinning on its own axis so you get days without going anywhere.
means the motion of a planet turning around its own internal axis, which is what actually creates day and night, as opposed to revolution, which is the trip around the sun.
from from latin rotare, to turn like a wheel; ancient skywatchers assumed stars circled a fixed earth until copernicus and galileo flipped the script and put the spin on us instead.
earth speedyou are moving 1670 km/h at the equator
slowing downdays lengthen by about 2 milliseconds per century
retrograde spinnervenus rotates backward and takes 243 earth days
fastest spinnerjupiter completes a day in under 10 hours