Instead of spiral arms, elliptical galaxies are just big clumps of stars. There is very little gas and dust. Because there is not much gas and dust, there's not enough material to make new stars.
Why would elliptical galaxies have less gas and dust than irregular galaxies?
Giant elliptical galaxies, on the other hand, can contain over a trillion stars. Elliptical galaxies are reddish to yellowish in color because they contain mostly old stars. Most elliptical galaxies contain very little gas and dust because they had already formed.
What do elliptical galaxies have very little of?
Unlike spirals, elliptical galaxies usually contain little gas and dust and show very little organization or structure. The stars orbit around the core in random directions and are generally older than those in spiral galaxies since little of the gas needed to form new stars remains.
What type of galaxies have the most dust?
Spiral Galaxies It is dominated by young, blue Population I stars. The central bulge is devoid of gas and dust. As you might expect, the bulge is composed primarily of Population II stars. Type c spiral galaxies have the most gas and dust.
Which type of galaxy has very little dust?
Elliptical galaxies contain mostly older stars. That means they often aren't as bright as spiral galaxies. They also have very little dust and gas. Elliptical galaxies are the largest and most common galaxies observed.
Why is there little star formation in elliptical galaxies?
Instead of spiral arms, elliptical galaxies are just big clumps of stars. There is very little gas and dust. Because there is not much gas and dust, there's not enough material to make new stars. In general, the stars in elliptical galaxies are old, red stars.