Activity no. 1, “Galaxy Zoo” >> Astronomy: Exploring Time and Space
TOTAL POINTS 15
Spiral galaxies are the most common type in the universe. Our Milk, Way is a spiral, as is the rather close-by Andromeda Galaxy. Spirals are large rotating disks of stars and nebulae, surrounded by a shell of dark matter. The central bright region at the core of a galaxy is called the -galactic bulge. Many spirals have a halo of stars and star clusters arrayed above and below the disk.
dust cloud, there is little new star formation occurring in them. €lloticalg can have as few as a hundred million to perhaps a hundred trillion star, and they can range in she from a few thousand light-years across to mom than a few hundred thousand. Astronomers now suspect that every elliptical has a central supermassive black hole that Is related to the mass of the galaxy Itself.
The images are harder to classify. The top Images are easy to classify but the galaxy zoo Images are not clear to classify.
