Which planet has the shortest time of rotation?

Mercury is the planet with the shortest period of revolution of approximately 88 Earth days. However, Mercury's period of rotation is about 59 Earth days. A planet's period of revolution is the time it takes for one complete spin around the sun. read more

Clearly Jupiter has the shortest time of rotation. As a consequence, it has the shortest day. The rapid rotation causes the planet's shape to be an oblate spheroid. The rotation velocity at the equator is around 12.6 km/sec. The bulge is visible, even in small, backyard telescopes. The difference is pretty large (9,400 km). read more

Jupiter is the planet with the shortest rotation time. It rotates once every 9 hours and 50 minutes. Jupiter in the planet with the shortest rotation time, with a day approximately 12 hours long. read more

A planet’s period of revolution is the time it takes for one complete spin around the sun. This is different from a planet’s period of rotation, which is the spinning of a planet on its own axis. Mercury is the nearest planet to the Sun. Ancient Assyrian astronomers knew about this planet, which has the name of the Roman messenger god. read more