Question

why do earth rotate around the sun the whole day to complete one rotation

Answer 1

Earth rotates once in about 24 hourswith respect to the Sun, but once every 23 hours, 56 minutes, and 4 seconds with respect to the stars. Earth's rotation is slowing slightly with time; thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth's rotation.

Answer 2

Earth's rotation is the rotation of Planet Earth around its own axis. Earth rotates eastward, in ... Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes, and 4 seconds with respect to ... Earth's rotation is slowing slightly with time; thus, a day was shorter in the past. ..... Graph at end.