Why is the sun a roundish shape?

Question

I am really curious...

Answer 1

yours is round?

Answer 2

If you'll notice all large masses in space are a rounded shape. The reason is the physics of gravity. All matter has a gravitational pull. The more matter that is accumulated the more mass and gravity exist. As things become huge in the vacumn of space the object 'crushes in on itself' as the matter attempts to pull into the small possible area. This 'inward pull' is what shapes things into circles.

For a good example, watch some of the NASA videos of the crew in the space station. There are some good videos that show water released from a container. These water droplets start out elongated and 'bounce inward' until they stabilize in nice round drops. This is the same physics as work as what shapes the large bodies in space.

Hope this answers the question!

Answer 3

Most of the cloud from which the Solar System formed was made of hydrogen gas, but there was also a little bit of other stuff, such as oxygen, silicon, and carbon. Because of gravity, all of the gas wanted to concentrate in one place, but when the gas got closer to the axis of rotation, it started to rotate faster around that axis, just like an ice skater rotates faster around her axis when she pulls in her arms. The fast rotation of the gas meant that it could not all be concentrated in one place, and what happened instead is that the gas concentrated in a flat disk (like a pancake) with most of the material in the center. The material in the center concentrated more until it got so hot and dense that it could start generating energy through nuclear fusion of the hydrogen. At that moment, the Sun became a star. The rest of the material clumped together and formed the planets, including the Earth.

Answer 4

Same reason a bubble is, sort of. Gravity in the sun's center is strong and pulls on the mass equally from all directions, making it a ball. Bubbles are round because of surface tension, when it all evens out so that the tension is the same on at any given point of the surface of the bubble, the shape must be spherical.

Answer 5

It isn't round it's slightly flat at the poles. Gravity trys to make it spherical because that is the form with the lowest gravitational potential energy but angular moment makes the equator bulge a little.

Answer 6

The Sun is round because of Gravity

Answer 7

The reason that the sun and most large objects in space, like stars, planets and large moons are round is that they formed and collapsed under the force of their own gravity. Our solar system started as a giant, spinning, cloud of gas and dust that slowly collapsed under its own gravity. As the cloud collapsed further its spin increased (like a spinning skater pulling in his/her arms). Most of the material collected in the center of this cloud and eventually formed the sun. As material collapses on itself, the most natural, efficient shape to form is a sphere. Gravity also has the effect, of trying to pull material towards the center of mass of an object. Due to the effects of rotation, the sun is not a perfect sphere. It bulges out slightly at its equator.

Answer 8

Gravity tends to pull all matter into one spot. The result of all the atoms trying to get as close to that spot as they can is always a sphere. That is why planets and stars are spheres. But small asteroids are not always round because the solid material is strong enough to resist gravity in small size objects and they can maintain an irregular shape against their feeble gravity.

Answer 9

Gravity

Answer 10

All matter has a slight gravitational pull which attracts other matter.
The sun is densest at the core, which means that all the matter is attracted inwards at an equal rate, creating a spherical shape.

Answer 11

Centrifugal force. In space, objects become round when they possess enough gravitational force to rotate and pull themselves into a geometrical spherical shape. Or they orbit an object that attracts them with its gravitational force and pulls them into a spherical shape (e.g. the Moon around the Earth). The Sun, originally would have been very large gaseous material, but then it would heat up due to the mass amount of energy it possesses and would over millions of years pull itself into the sun as we see it.