() type of galaxy with an ellipsoidal shape and no spiral structure. Categorized from E0 (no disk or round to E7 (most elliptical). [The ellipticity is calculated from 10(a-b)/a where a = major axies and b = minor axis.] Other designations include dwarf elliptical ( dE), giant ellipticals () and supergiant ellipticals ( cD).
a galaxy with a smooth, rounded appearance. Early large burst of star formation long ago used up all of their original gas and dust. Star orbits are aligned in more random directions and have greater eccentricities than star orbits in spiral galaxies.