And the bondservant abideth not in the house for ever: the son abideth for ever. The Bible Story Rev. Newton Marshall Hall Thou shalt not make him to serve as a bondservant: as an hired servant, and as a sojourner, he shall be with thee.
1 Different temperatures, or spectral types of stars group together on a plot of absolute magnitude versus temperature, called a Hetzsprung- Russell diagram. 2  Star types include main sequence stars, neutron stars, variable stars, dwarfs and white dwarfs, giants and super giants.  Standards.
Spectral Types and Surface Temperatures. Spectral types are a measure of the surface temperatures of stars and are letter designations: O, B, A, F, G, K, and M. Type O stars have the highest surface temperatures and can be as hot as 30,000 Kelvins. On the other extreme, type M stars have the lowest surface temperatures and can be as cool as 3,000 K. Hertzsprung-Russell Diagram The most significant feature of the HR Diagram is that the stars are not distributed in it at random (showing any combinations of absolute magnitudes and spectral types), but rather group themselves only into certain parts or regions of the diagram thus forming several groups.