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Gravity.
Gravity pulls things together equally in all directions. This means that once the amount of material collected together gets big enough to it flows into a sphere. However, if the sphere is rotating then the speed of the spin want to fling material out and this means that spinning bodies are not spheres but 'oblate spheroids', they are fatter round their middles.
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Do stars orbit planets or planets orbit stars?
Planets orbit stars.
Why some elliptical galaxies are lens shaped where as others are quite spherical?
Very lens-shaped elliptical galaxies have a high amount of reddish stars. Hence both their shape (the "spiral arms" have pulled inward over time) and the color of the stars implies they are very old galaxies. Spherical galaxies - I'm not up enough on that topic, so I will leave that part of the answer to another.
What is hotter planets or stars?
stars, the planets have to get heat from stars
What is the difference between stars and planets and and moon?
A star is a luminous celestial body, made up of plasma having a spherical shape.A planet is either a rocky or gaseous spherical body orbiting the Sun, or a star.A moon is a natural satellite of a planet.
Which galaxy are the planets on?
Planets orbit stars, stars orbit a galaxy. Planets are not "on" anything. A lot of stars out there have planets - we are just finding out how many now that we have better techniques to find them. So probably all galaxies have at least some stars with planets.
What are planets and stars?
Spherical
What shape are planets and stars?
Spherical
Why stars are in the shape of a star?
They are not star-shaped. Stars are actually spherical due to gravity.
Are stars shaped like spheres?
Yes, stars are shaped like spheres (same with planets and moons).
What is the same about a star and a plant?
Bot stars and planets are spherical objects that are held together by gravity.
Are the sun and planets round?
Yes!!!! The correct term is "spherical", which means round in all dimensions like a ball. (A hoop is round, but is not spherical) Stars and planets are not perfect spheres, but they are very close to perfect spheres.
If the sun is a star why isn it shaped like one?
Stars are not physically star-shaped (as in having 5 points). They're spherical in shape.
Who is euclid in the field of astronomy?
He is the father of spherical astronomy, by which the location of objects like planets and stars in the universe can be determined.
What shape do you think the universe is?
Since all of the planets, and moons, and stars seem to have a spherical shape, it is possible that the universe may be a sphere.
Are all planets and stars shape like circle?
All planets and stars are approximately spherical in shape, a shape formed under their own gravity. Most are `oblate` spheroids though, squashed spheres, since their rotation can cause them to `bulge` out at the equator if it is sufficient enough.
Do stars orbit planets or planets orbit stars?
Planets orbit stars.
Why some elliptical galaxies are lens shaped where as others are quite spherical?
Very lens-shaped elliptical galaxies have a high amount of reddish stars. Hence both their shape (the "spiral arms" have pulled inward over time) and the color of the stars implies they are very old galaxies. Spherical galaxies - I'm not up enough on that topic, so I will leave that part of the answer to another.
