Inspiration. Inspiration is the step where you decide what sort of character you want to play. I consider this the heart-strings step. You have found something you love to play, something you want to play.
In the end, it comes down to an estimate. In one calculation, the Milky Way has a mass of about 100 billion solar masses, so it is easiest to translate that to 100 billion stars. This accounts for the stars that would be bigger or smaller than our sun, and averages them out.Other mass estimates bring the number up to 400 billion.illions and billions of stars in a galaxy (after a quote often mistakenly attributed to Carl Sagan) is how many people imagine the number of stars you would find in one.
Probably between 50 and 250 billion, but it's difficult to say for sure. The Milky Way is estimated to contain around 300 billion stars, which is a decent starting point. However, the Milky Way necessarily a very good representative of an average galaxy, since it is much larger than dwarf galaxies, but far smaller than giant elliptical galaxies. Since smaller galaxies are more common than larger ones, I'd place the average stars between 50 and 250 billion per galaxy.