Question

How do you read a H-R diagram?

Answer 1

The higher a star is, the brighter it is (as if you were close to it, not faraway {the farther a star is, the dimmer it appears}). The closer to the left, the hotter the star is (Generally, the bigger star of the same letter classification will be brighter). The HR diagram is also divided into star types, which are (from left) O,B,A,F,G,K, and M. The HR diagram is divided into colors too, (from the left Blue, White, Yellow, Orange, Red).