Stellar Demographics

All types of stars exist in certain proportions in galaxies. If you are looking to create a reasonably accurate collection of stars, you may want to have ratios of stars similar to that of the Milky Way, whose ratios are given below : Please note that Red Dwarfs (M and very low-mass K stars) are included in the Dwarf statistics, not in the Main Sequence statistics. Also note that these figures may change for different galaxy types. Expect older galaxies (such as ellipticals and globular clusters) to have a higher proportion of low end Main Sequence stars and Dwarfs, while galaxies with intense star formation (such as interacting or irregular galaxies) will likely have a higher proportion of giants and high end Main Sequence stars.

The positions of each star type of the HR diagram are shown below.