Stellar Classification
Stars: What are they and how are they classified? One thing we all have in common is that we all love to stare at the night sky and look at the stars. But when we see thousands of stars in the night sky to accompany us in the middle of the night, how long has it been since you actually thought about stars? Most people know that our sun is a star. But what else do you know about it? Let's find out together! A Star is a luminous hot ball of gases (mostly hydrogen and helium) held together by its own gravity. Every star is supported by nuclear fusion where two hydrogen nuclei are merged together to form helium nuclei. As of now there are seven classifications for stars. These stars are classified under the Morgan-Keenan (MK) system using the letters O, B, A, F, G, K and M, a sequence from the hottest (O type) to the coolest (M type). 1) G - Type Stars Let us start with a star that comes to all our minds first, the Sun. The Sun is literally part of our daily life and it's one of t