What is the Main Sequence on the Hertzsprung Russell diagram?

Answer 1

Stars int the "power stroke" of their lives have a definite relation between their mass and their luminosity. When these two parameters are graphed, almost all stars will fall on this line. The stars that don't are peculiar for one reason or another. (carbon stars spewing soot, old stars bloating, etc.) The stars that are on the line are said to be on the main sequence.

Answer 2

It's the line that runs from upper left to lower right. This represents stars fusing hydrogen in their cores, and it's where stars spend 80 to 90% of their lives. Above that are the various giant branches, for stars fusing helium and beyond, and below it, white dwarfs.

Answer 3

It is the diagonal line on that graph where the majority of stars are found. It is a brightness vs color graph, with bluer stars being brighter and redder stars being dimmer. The Sun is somewhere near the middle of it. White dwarf stars are bluish stars that are dimmer than expected and red giant stars are red stars that are brighter than expected.

Answer 4

they are going to be placed all alongside the middle of the diagram. those on the suitable are all giants and supergiants, mutually as those on the backside are dwarfs (or dwarves, in case you want to proceed to be technically suitable).