365.25 days or one year
24 hours (a day)
it revolves around the earth in 27.3 days or just in one month.
Earth takes 24 hours to revolve on its axis. A revolution is orbiting around the sun and not on its axis.
It takes Earth 24 hours to rotate on its axis. It takes 365.25 days to complete a revolution around the sun.
One year.
it take Venus about 42 earth days to make a complete rotation on its axis
It does NOT orbit on its axis, but rotates on its axis. It takes 24 hours, one day, to make one complete rotation. However, It does ORBIT the Sun. It takes the Earth 365.25 days, one year, for make one complete orbit of the Sun. Whilst it is making this orbit it is also rotating on its axis, as above.
6 Earth Days
It takes 85 hours 3½ Earth days for Europa to rotate on its axis. It also takes 85 hours for Europa to complete one orbit around Jupiter.
The moon spins once on its axis every month; one sidereal period around earth is equal to one complete rotation on its axis. If the moon did not rotate, all of its surface would be visible from earth over the course of a month.
The moon spins once on its axis every month; one sidereal period around earth is equal to one complete rotation on its axis. If the moon did not rotate, all of its surface would be visible from earth over the course of a month.
The moon revolves around its axis and it orbits the earth. The earth and the moon orbit the sun. Neither the earth nor the moon revolves around the sun; however, the two of them take 365 days to complete an orbit around the sun.