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View from a Scope | December 7, 2019

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Do Stars spin on their axis like planets?

Stellar rotation is usually the result of the rotation in the gas cloud that condensed to form the star. However unlike planets stars are not solid bodies so their rotation is not always simple.

Firstly stars like many planets suffer from equatorial bulges. The faster the rotation, the more pronounced the bulge. Many stars also show differential rotation where the rotation at the equator is faster than the rotation at the poles.

Pulsars which are magnetized remains of exploded stars, rotate very quickly. Around 716 times every second!

Posted in: Stars