What characteristics do the outer planets share?

Answer 1

The IAU resolves that planets and other bodies in our solar system, except satellites, be defined into three distinct categories in the following way:

A planet is a celestial body that:

1. is in orbit around the Sun
2. has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape
3. has cleared the neighbourhood around its orbit

A "dwarf planet" is a celestial body that:

1. is in orbit around the Sun
2. has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape
3. has not cleared the neighbourhood around its orbit, and (d) is not a satellite.

All other objects except satellites orbiting the Sun shall be referred to collectively as Small Solar System Bodies.

Answer 2

Well first of all, there are classical planets, such as the ones in our solar system, and there are dwarf planets, such as Pluto.

Classical planets

1) Has cleared its neighborhood

2) In orbit around the sun

3) Has sufficient mass

Dwarf planets

1) Has not cleared its neighborhood

2) small or undersized

3) Has sufficient mass (as do all planets)

Answer 3

To be a planet, a body must, essentially, orbit the star in its system. It must be big enough to be round. And, it must have cleared out the space around it.

Ceres and Pluto both orbit the sun and are round. However, they are one of thousands of bodies like them, so they are not planets.

Answer 4

The answer is all about sience. if you know science you know all about he planets. figure it out yourself.

Answer 5

The outer planets are primarily gaseous meaning they are basically just gargantuan masses of gas.

Answer 6

planets do not shine with their own energy but shine because of energy of stars.

they revolve around stars

Answer 7

all planets revolve around the sun

Answer 8

They're all 'gas giants', without any surface visible to us.