The stars are classified on the basis of their temperature and the spectra. Stars are divided into the 7 main classes.
Classification of stars:
The stars are classified on the basis of their temperature and the spectra. Stars are divided into the 7 main classes, O, B, A, F, G, K and M.
O-stars are the hottest, bright and blue, while M-stars are dimmer, relatively cooler and red.
Therefore, the stars are classified on the basis of their temperature and the spectra.
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