Speaking of Mercury, approximately how long is one year on the planet closest to the Sun? The sizes of the objects in our model of the solar system are not to scale; however, the relative orbital periods around the Sun are. So you can answer this question by counting the revolutions of Mercury during one Earth year.

Speaking of Mercury, approximately how long is one year on the planet closest to the Sun? The sizes of the objects in our model of the solar system are not to scale; however, the relative orbital periods around the Sun are. So you can answer this question by counting the revolutions of Mercury during one Earth year.