A dwarf elliptical galaxy is a small, rounded collection of stars, gas, and dust that lacks significant structure. These galaxies are typically less than a few thousand light-years in diameter and contain fewer stars than larger elliptical galaxies. They are often found in groups or clusters and can be the remnants of larger galaxies that have merged or lost material over time. Dwarf elliptical galaxies are characterized by their smooth, featureless appearance and low levels of star formation. They are thought to be older than other types of galaxies, such as spiral galaxies, and often contain older, red stars. Their study helps astronomers understand galaxy formation and evolution in the universe.