2007-01-14 16:35:41 · 15 answers · asked by BennyCA 1 in Science & Mathematics ➔ Astronomy & Space
The earth is not round, it is a geoid.
2007-01-14 16:58:52 · answer #1 · answered by futureastronaut1 3 · 0⤊ 0⤋
Planets must be big enough that their gravity makes them round. Moons do not. If something orbiting a star is not round, it is usually classified as an asteroid (or comet if it's icy). A moon orbits a planet. Some moons are big enough to be round, some are not.
2007-01-14 17:02:35 · answer #2 · answered by skepsis 7 · 0⤊ 0⤋
All planets are round but kind of flattened from top to bottom. Saturn in particular is quite visibly not spherical. Large moons are round but small moons, which make up the larger share numerically, are not round.
2007-01-14 16:42:30 · answer #3 · answered by Anonymous · 2⤊ 0⤋
Planets have to be round (or very nearly so) by definition. But not moons. Some of the smaller moons are elongated or otherwise irregularly shaped.
Here is a link to Saturn's moon Hyperion, the largest irregularly shaped body in the solar system.
http://planetary.org/explore/topics/our_solar_system/saturn/hyperion.html
Here is a link to Saturn's moon Atlas. Note its highly irregular shape.
http://planetary.org/explore/topics/saturn/atlas.html
2007-01-14 17:24:41 · answer #4 · answered by Northstar 7 · 1⤊ 0⤋
Planets are spherical by definition. However, moons are not. Both of Mars' moons (Phobos and Demos) are not spherical. Neither are some of the moons of the gas giant planets (i.e. Jupiter, Saturn, Uranus and Neptune)
Also some of the asteroids in the asteroid belt between Mars and Jupiter are not spherical.
2007-01-14 20:16:52 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Technically no. I mean, the Earth is a geoid, which is only roundish.
For simplicities sake though, yep all planets and moons are round.
2007-01-14 16:40:12 · answer #6 · answered by ? 4 · 0⤊ 0⤋
yes. planets have to be round by definition. i think moons too.
2007-01-14 16:38:31 · answer #7 · answered by notmyrealname 3 · 0⤊ 1⤋
Planets and moons are slightly flattened at the poles, so they are not perfect spheres.
2007-01-14 16:40:53 · answer #8 · answered by Anonymous · 0⤊ 0⤋
no, none of the planets and moons are round, they are all types of diffrent shapes, there are lots of otther planets beyond our solar system that are a completely different shape.
2007-01-14 22:06:23 · answer #9 · answered by Anonymous · 0⤊ 1⤋
Caprica is round.
How I long for my childhood in Caprica. Someday we will return and rid it of the Cylon occupation. But first we must find the planet called Earth.
2007-01-14 16:46:35 · answer #10 · answered by generalchris7 3 · 2⤊ 0⤋
at least too moons are not round. the two moons of mars, phobos and deimos
2007-01-14 16:58:25 · answer #11 · answered by chess_e4_pr 1 · 0⤊ 0⤋