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Mass is what causes an object to have gravity. Above a certain mass and radius, the self-gravity of the object overcomes the yield strength of even the strongest solid materials. The surface may still be irregular, but overburden pressure causes the rocks deep inside to deform until the planet has a stable spherical shape. For solid bodies, that occurs between 200km and 300km radius, depending on the density and strength of the materials. Dwarf planets, moons and asteroids with radii less than 200km may be more potato-shaped, but larger objects will always be round.
There is no specific limit; simply speaking, the more mass a planet has, the more gravity it will have. And the larger it is, the more insignificant will any elevation (such as a mountain) seem in comparison. But of course, there is no definite point at which you can say "this one is round, and the other one isn't"; technically, no planet will ever be perfectly round.
A good rough estimate would be Ceres, the least massive object we know of that's definitely "round". The mass of Ceres is about 1021 kg. However, much less massive bodies could be round if they're liquid; any liquid body should be "round".
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Why is Eris not considered the tenth planet in our solar system?
Eris is a "dwarf planet", and does not have enough gravity to make the surface round, or to clear other objects near to it.
Can you make a planet from rice crispy treats?
you just skulpt it
Was it Willy Wonka make square sweets that looked round?
Yes Wonka did make square sweets that look round. They had eyes that looked around, not as the children in the book believe meant to actually look like a circle
How much did actor michael clark duncan make for planet of the apes?
$10 Million
Pokemon pearl what a round stone evolves?
Happiny. make it Hold it then lvl it up in the morning (4am to 8am I think) This gets u Chansey. To make it the infinatly fat Blissey, Make it REALLY Happy and lvl it ( to make it happy, win battles, don't let it faint and give it some medicine(Iron, Carbos etc.
What shape is Mars?
Overal the shape of the planet Mars is round. However, there is some indentations in the planet that make it a little distorted and not perfectly round.
What is the criteria used to determine an object is a planet?
The criteria used to determine if an object is classified as a planet generally include three main characteristics: the object must orbit the Sun, it must be massive enough for its gravity to make it round in shape, and it must have cleared its orbit of other debris. Additionally, it must not be a satellite of another planet.
Why is Eris not the tenth planet in our solar system?
Eris is a "dwarf planet", and does not have enough gravity to make the surface round, or to clear other objects near to it.
Why is Eris not considered the tenth planet in our solar system?
Eris is a "dwarf planet", and does not have enough gravity to make the surface round, or to clear other objects near to it.
Why is Eris considered the tenth planet in our solar system?
Eris is a "dwarf planet", and does not have enough gravity to make the surface round, or to clear other objects near to it.
What action occurs to determine a year?
the time taken by a planet to make one revolution around the sun.
What determine the length of a year on a planet?
The length of time it takes to make a complete orbit around the sun.
How do you determine the direction of an object?
establish a point of reference (it will depend on the number of dimensions involved to determine the amount of numbers needed) and make all measurements from there.
What does the term day mean for a planet?
In general terms a day for a planet is the time taken for the planet to make on rotation on its own axis. Likewise a year for a planet is the time taken for the planet to make one orbit (rotation round) its primary star. Where a planet is tidally locked to its primary, the day length and the year length will be the same, such that the planet keeps one face permanently towards it primary (like the Moon does to the Earth).
Can a dwarf planet be round?
Yes, dwarf planets can be round. Like regular planets, dwarf planets are large enough for their own gravity to pull them into a nearly spherical shape, making them round. Examples of round dwarf planets include Pluto and Eris.
How do you make your own planet on Littlebigplanet?
How you make your own planet is go to your campaign planet and go to the right. The planet with the holes on it is how you make your planet.
How do you make a model of planet earth?
That depends what exactly you want to model; what you want to use the model for. In the simplest case, you can take a ball, an orange, or some other round object, and say "This represents planet Earth".
