Shape: sphere (3-dimentional circle)
Size: diameter over 1.3 million km at equator. That's over 100 times the Earth's diameter.
The sun will never change its size and shape, when the sun was created that's how it came out, no body can go to the sun and see whats there its just sun it has to be alt east half of the earth because it goes around 360 divide it by 2, and it would be half! that's why the sun size and shape cant change!
The sun maintains its size and shape through a balance of forces. Gravity pulls inward, trying to collapse it, while nuclear fusion at its core generates energy that pushes outward. These two opposing forces create an equilibrium that sustains the sun's size and shape.
the light of the sun
The sun is a nearly perfect sphere, with a diameter of about 1.4 million kilometers.
The shadow of a cloud on the ground is the same size and shape as the cloud itself because the sun's rays are parallel and the cloud is acting as a screen, blocking the light from reaching the ground below and creating a shadow that mirrors its shape.
because Chuck Norris said so
The sun maintains its size and shape due to a delicate balance between the inward force of gravity pulling matter inward and the outward force of nuclear fusion generating energy and pushing matter outward. This balance helps in maintaining the stability of the sun's size and shape over time.
The sun is approximately 400 times the size of the moon, however, it is also approximately 400 times farther away. This relationship cancels out and makes the sun and the moon appear observationally to be the same size on earth.
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Sun&Display=Facts
Pressure caused by high temperatures are balanced by gravity
The gravity of the Sun is balanced by the outward pressure from nuclear fusion occurring in its core. This pressure pushes outward, counteracting the force of gravity pulling everything towards the Sun's center, maintaining the Sun's stable size and shape.
The radius of the Sun is typically measured using observations of its shape and size. Scientists use various methods such as helioseismology (studying solar oscillations) and analyzing solar phenomena like sunspots and solar flares to estimate the Sun's radius. These measurements help determine the Sun's physical size and structure.