Which planet has the smallest diameter?
The Smallest Planet In The Solar System – Mercury
| Equatorial Circumference | 15,329 km |
|---|---|
| Equatorial Diameter | 4879 km |
| First Record | 14th century BC |
| Known Moons | None |
| Mass | 330,104,000,000,000 billion kg (That is 5.5% of Earth) |
Which planet has the largest orbital radius?
1. Introduction
| Planet | Semimajor Axis of Orbit (km) | Mean Radius (km) |
|---|---|---|
| Mercury | 57,909,175 | 2,439.7 |
| Venus | 108,208,930 | 6,051.8 |
| Earth | 149,597,890 | 6,378.14 |
| Mars | 227,936,640 | 3,397 |
Which is the smallest planet in our Solar System?
Mercury is the smallest planet with a radius of only 2,440 km at its equator. Mercury is not that much larger than the Moon, and it is actually smaller than some of our Solar System’s larger satellites, such as Titan. Despite Mercury’s small size, it is actually dense with higher gravity than you would expect for its size.
Which is the largest planet with the largest radius?
Jupiter is the largest of all the planets. It has a radius of 71,492 kilometers at the equator and a radius of 66,854 kilometers at the poles. This is a difference of 4,638 kilometers, which is almost twice Mercury’s radius. Jupiter has a radius at the equator 11.2 times Earth’s equatorial radius.
How big are the planets in the Solar System?
Earth – 3,959mi (6,371km) radius; Mars – 2,106mi (3,390km) radius; about half the size of Earth; Jupiter – 43,441mi (69,911km) radius; 11x Earth’s size; Saturn – 36,184mi (58,232km) radius; 9x larger than Earth; Uranus – 15,759mi (25,362km) radius; 4x Earth’s size; Neptune – 15,299mi (24,622km) radius; only slightly smaller than Uranus
Which is the largest planet in the inner planets?
Radius of the Planets. Earth is the largest of the four inner planets with a radius of 6,378 kilometers at the equator. This is over two times larger than the radius of Mercury. The radius between the poles is 21.3 km less than the radius at the equator because the planet has flattened slightly since it only takes 24 hours to rotate.