0
For an object to become round, its gravity must be strong enough to overcome their rigidity. The size at which this occurs is different for each material it could be made of, but by comparing the size of the smallest rounded objects to the largest unrounded objects, a midpoint can be found; the moon Mimas has a mass of around 4 x 1019 kg and is rounded, where many asteroids ranging from 2 x 1019 to 4 x 1019 kg are not so. While this may be due to impacts and not their own characteristics, we could probably place the mass necessary for rounding to begin at somewhere around this mark.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoThey aren't round per say they are oval they get this shape because when they are young planets the magnetic fields are very strong thus the materials or masses present in the young planet get shaped or form according to the magnetic pull and has the planet cools down the magnetic pull and the liquidity of the planet decreases . Thus maintaining an oval shape
Add your answer:
Earn +20 pts
Why are the dwarf planets round?
because of the gravity of the other planets around them
Are dwarf planets round?
Yes. While not considered planets, dwarf planets are still massive enough to be rounded by their gravity.
Why are planets moons ans stars all round?
there gravity pulls them into round balls.
What is the only planet that is not spherical in shape?
All planets are 'round' because of gravity. With the formation of the Solar System, gravity gathered gas and dust into clumps which became larger and eventually planets. The collision of these pieces caused planets to become hot and molten and gravity pulled the molten material towards the planet's centre in the shape of a sphere. The planets cooled and remained spherical
Why do planets continue round the sun?
So they can get some light.
whats starts with p and round?
PLANETS ARE ROUND AND START WITH P SO THE ANSWER IS PLANETS ( i think )
What will the protoplanetary disks eventually become?
That depends what the disk is forming round. If it is a large black hole it will form a quasar, if it is round a star, it will form planets (a solar system).
Why are the dwarf planets round?
because of the gravity of the other planets around them
Are all-stars round?
Yes. All the stars are round and all the planets are round.
Are all stars round?
Yes. All the stars are round and all the planets are round.
Does the moon revolve round the planets?
Moons orbit planets Or rather moons and planets orbit their barycenter.
Which of the following is true for both gas planets and terrestrial planets?
They are a round shape.
What is the brief description of all the planets?
round
Are the planets carried round on crystal spheres?
No.
Is Mars round?
The planet Mars is round in shape. All of the planets in our solar system are orbits. The gravitational pull of the sun has formed the planets to be around.
Are dwarf planets round?
Yes. While not considered planets, dwarf planets are still massive enough to be rounded by their gravity.
How many rotations do the planets have?
1. round the sun. 2. round its own axis.
