Question

what can be concluded about the initial mass of a blue sequence star compared to a red main sequence star

Answer 1

A blue sequence star will be smaller and hotter than the red main sequence star. blue stars are also older that red stars, and they are usually toweards the end of their lifetime.

Answer 2

A blue arrangement star will be littler and more blazing than the red fundamental grouping star. A B-type principle succession star (B V) is a primary arrangement (hydrogen-consuming) star of phantom kind B and glow class V.

These stars have from 2 to multiple times the mass of the Sun and surface temperatures somewhere in the range of 10,000 and 30,000 K. B-type stars are very glowing and blue.

A blue sequence star will be smaller and hotter than the red main sequence star. Blue stars are also older that red stars, and they are usually towards the end of their lifetime.