Slide 1 Galaxies What is a galaxy? How many stars are there in an average galaxy? About how many galaxies are there in the universe? What is the name of our galaxy? Slide…
Slide 1 Types of Galaxies Elliptical: Spiral: Irregular: Slide 2 Milky Way Galaxy Supermassive Black Hole at center ~ 1 Million Solar Masses Sun - 2/3 of the way out on a…
Celestial Tools and Measurements Celestial Tools and Measurements Celestial Sphere Imagine a sphere that surrounds our planet in which all the stars are attached. This sphere…