April 26, 2019

Why Is the Solar System Flat?

When a field of things within mutual gravitational attraction are spinning, they tend to flatten out. That’s because the uniform central pull from the gravity is influenced by the outward, perpendicular centrifugal force from the rotation.

Even the earth, which a very low angular momentum to mass ratio, bulges at the center because of the same effect, only much less marked. As a result, the earth has the shape of an oblate spheroid.

In a solar system or galaxy the mass to angular momentum ratio is very high, causing the formation of a nearly flat disk.

In this video, MinutePhysics host Henry Reich explains why our Solar System and other space objects like galaxies are flat.


About Bhattarai Diwas (thenepaltech) 213 Articles
I'm an Engineer and have Bachelor's Degree in Electrical and information technology. Right now I am working as a software developer in Germany. All in all I love programming and I am a tech geek.