How large does a planet/moon have to be before it is spherical and not oblong?

Question

How large does a planet/moon have to be before it is spherical and not oblong?

Answer 1

Moon is one third size of the earth.

gravity is 1/81 of earth.

Answer 2

as long as it spins i guess

Answer 3

The center of gravity is fixed for solid bodies.

Answer 4

its not always a matter of size- its a matter of matter. for an example, a neutron star is only 10 miles in diameter. if a rocky celestrial body was 10 miles long it would not be massive and dense enough for its own gravity to shape it into a sphere. the neutron star is round because it is extreamily dense, and therfore has more gravity. the actual density for an object to shape itself into a sphere is not known, but it probably a little less than the density of pluto.

Answer 5

it doesnt matter how large it is, it just has to have the same diameter no matter how you measure it

Answer 6

as long as it spins (which everything does) it will be oblong