All the stars we see when we look up in the night sky belong to the Milky Way Galaxy which is also the home of our solar system. If you step out during the early evening on a clear, moonless winter night, you willl see a faint milky band of light stretching across the sky directly overhead. That is a band of stars known as the Milky Way, and it is part of the Milky Way Galaxy. The ancients imagined it was a trail of milk. The stars in the Milky Way appear to be close together, but they are really separated by billions of miles of mostly empty space.
Spiral galaxies have a center of gravity or nucleus and spiral arms that rotate around the nucleus.
The Milky Way galaxy has three spiral arms. Our solar system is located on one of those arms. Here are some amazing facts about our galaxy. Also, the Milky Way is not standing still.