👉 The term "galactodensimeter" refers to a unit of measurement that is used in astronomy and astrophysics. It represents the distance from Earth's center to a galaxy, or more specifically, the distance between two galaxies located at roughly 100,000 light-years apart. In terms of astronomy, galactodensimars are usually defined as being the "distance" between two galaxies that have a known stellar mass and luminosity. This is because we use