Elliptical galaxies have an oval or round shape, with stars arranged in a smooth, evenly distributed pattern. They lack the distinct spiral arms seen in other galaxy types and generally contain older stars. These galaxies are often less active, with little gas or dust for new star formation.
Elliptical galaxies range from small, dwarf galaxies to massive ones containing trillions of stars. They are commonly found in galaxy clusters and can vary in appearance from nearly spherical to more elongated. Due to their lack of gas and dust, elliptical galaxies tend to be quieter, with fewer new stars being born.
The atmospheres of elliptical galaxies can vary, and they are typically made up of older stars with very little new star formation. The absence of gas and dust limits the creation of new stars. Their smooth appearance and lack of spiral arms make them different from other galaxies like the Milky Way.
Exploring elliptical galaxies is crucial for understanding the life cycle of galaxies and the potential for new star formations. These galaxies provide valuable insight into the evolution of the universe over time.