It turns out that there are many more stars with mass less than the mass of the Sun than with mass more than the mass of the Sun. So, it all works out right. How many stars are there in the whole galaxy? Image credit: NASA. Milky Way. Latest. The number of stars in a galaxy depends on its size. More Space. By Kate Baggaley. Science. A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter. The Milky Way Galaxy, our little corner of the Universe, is a pretty massive place, with an estimated 200-400 million stars (or more) How many stars are there in the Milky Way? It has an estimated radius between 1,800 and 2,100 times that of the Sun. It’s impossible to know how many stars exist, but astronomers estimate that in our Milky Way galaxy alone, there are about 300 billion. Super Mario 3D All-Stars was announced September 3rd. Our solar system is just a tiny speck in the Milky Way. How many galaxies will you have to travel through to collect all the stars in Super Mario Galaxy? This red hypergiant is among the largest known stars in our galaxy. The Milky Way Galaxy has between 200 and 400 billion stars. This diagram shows a brown dwarf in relation to Earth, Jupiter, a low-mass star, and the sun. At this size, if placed in our solar system, it would reach nearly to the orbit of Saturn.VY Canis Majoris is located roughly 3,900 light-years from Earth in the direction of the constellation Canis Majoris. Using a low-mass red dwarf as an average-mass star will give you a totally different answer for the total number of stars in our galaxy. It's a remake containing Super Mario 64, Super Mario Sunshine and Super Mario Galaxy and is playable on the Nintendo Switch. October 24, 2018. Comments Off on How Many Stars in the Milky Way? So, even though we cannot actually count the number of stars in the galaxy, we can estimate the number of stars in the galaxy as roughly 100 billion (100,000,000,000). But how many stars are out there? Tim Brown/ The Image Bank/ Getty Images.