Elliptical- An elliptical galaxy is a type of galaxy having an approximately ellipsoidal shape in a smooth, nearly featureless brightness profile. Unlike spiral galaxies with organization and structure, they are more three- dimensional, without much structure, and their stars are in somewhat random orbits around the center.
Spiral- A spiral galaxy is a certain kind of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae and, as such , forms part of the Hubble sequence. Spiral galaxies consist of a flat, rotating disc containing stars, gas and dust, and a central concentration of stars known as the bulge.
Irregular- The irregular galaxy is a member of the Local Group, at a distance of about 10 million light years.
Spiral- A spiral galaxy is a certain kind of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae and, as such , forms part of the Hubble sequence. Spiral galaxies consist of a flat, rotating disc containing stars, gas and dust, and a central concentration of stars known as the bulge.
Irregular- The irregular galaxy is a member of the Local Group, at a distance of about 10 million light years.
Irregular Galaxy Spiral Galaxy Elliptical Galaxy
The Big Dipper Ursa Major