Elliptical galaxies. Irregular galaxies. Top and side views of spiral galaxies, An elliptical galaxy, An irregular galaxy. Huge; contain stars, gas, and dust, Huge; contain stars, gas, and dust, Huge; contain stars, gas, and dust. Held together by gravity, Held together by gravity, Held together by gravity. read more
Irregular II Galaxies (Irr II): The second type of irregular galaxy does not have any feature what so ever. When they were formed through gravitational interaction, the tidal forces were strong enough to eliminate all identified structure of what galaxy type it may have been previously. read more
Irregular Galaxies have very little consistency in terms of formation and distribution, and usually have similar levels of consistency with the types of stars they have. Certain parts of Irregular Galaxies have large amounts of gas and dust. read more
These so-called "irregular galaxies" do not have a lot of common features. Many of them are the results of galaxy collisions or near misses. One type of irregular galaxy is called a "starburst galaxy." Starburst galaxies shine brightly as many new stars are born in a short period of time. read more