Answer;
Spiral galaxy
Explanation;
In a spiral galaxy, the stars, gas and dust are gathered in spiral arms that spread outward from the galaxy's center. Spiral galaxys are divided into three main types depending on how tightly wound their spiral arms are: Sa, Sb and Sc.
All spiral galaxies can broadly be described visually as having a central bulge of old stars surrounded by a flattened disk of young stars, gas and dust.
