How do you read a H-R diagram?

Question

John Alexander · Accepted Answer

THANKYOU FOR ASKING!!!

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).

Here is a way to remember the different star types (from hot to cooler {left to right}):
Oh,
Be
A
Fine
Guy/Girl
Kiss
Me!

Ivy Allen · Answer

undefined To read a Hertzsprung-Russell (H-R) diagram, you need to understand the axes. The horizontal axis usually represents temperature or spectral type, increasing from right to left. The vertical axis typically represents luminosity or absolute magnitude, increasing from bottom to top. Stars are plotted as points, with their positions indicating their temperature and luminosity. Main sequence stars form a diagonal band from hot, luminous stars at the top left to cool, faint stars at the bottom right. Other regions of the diagram represent different stages in stellar evolution, such as giants, supergiants, and white dwarfs.