Astronomy

Essay specific features

 

Issue:

Science

 

Written by:

James D

 

Date added:

August 1, 2016

 

Level:

University

 

Grade:

A

 

No of pages / words:

3 / 769

 

Was viewed:

4477 times

 

Rating of current essay:

 
Essay content:

The astronomers started dividing the stars into classes based on their spectra. They began with class A and worked their way down the alphabet. Some of these classes were later combined so eventually only classes A, B, F, G, K, M, N, O, R, and S remained. The Sun is a star of class G. Many years later it was discovered that most spectral classes depend mainly on the surface temperature of the stars...
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The Sun is a star of class G. Many years later it was discovered that most spectral classes depend mainly on the surface temperature of the stars. When you put the classes in descending order of surface temperature, then you get O B A F G K M and that is the order in which they're usually mentioned nowadays...
displayed 300 characters

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