A star's color mostly indicates its surface temperature. However, it could also be used to estimate the age of the star.
There are several types of stars according to their colors which include the following;
- O-class stars
- M-class stars
- B-class stars
- A-class stars
- F-class stars
- G-class stars
The O-class stars are often blue in color and they are the hottest while the M-class stars are red in color and their temperatures are very low compared to the others, making them the coldest type of stars.
The color of the star is not a major factor in the estimation of the age of the star though it could be used sometimes.
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