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Star Classification: Difference between revisions
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These are divided into ten numbered subtypes. For example: | These are divided into ten numbered subtypes. For example: | ||
A1 A2 A3 A4 A5 A6 A7 A8 A9 | A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 | ||
Stars at the '0' end of this band are hotter (around 50,000 degrees K); bluer in colour and more massive; those at the other end are cooler (around 2,000 degrees K), redder in colour and less massive. A conventional code for star colour is: | Stars at the '0' end of this band are hotter (around 50,000 degrees K); bluer in colour and more massive; those at the other end are cooler (around 2,000 degrees K), redder in colour and less massive. A conventional code for star colour is: | ||