Differbetween
Astronomers have identified more spiral galaxies than ellipticals, but that's simply because the spirals are easier to spot. While spiral galaxies are bright, elliptical galaxies are dim. ... The existing stars inside an elliptical galaxy tend to be older, giving off more red light than younger stars.
- How are elliptical galaxies different from spiral galaxies?
- What is the major difference between an elliptical galaxy and a spiral galaxy quizlet?
- Do spiral galaxies become elliptical galaxies?
- What are the 3 different types of galaxies?
- What is the definition of a spiral galaxy?
- Why does an elliptical galaxy look like one giant star?
- Is this a photo of a spiral galaxy or an elliptical galaxy and how do you know?
- How are the centers of many spiral galaxies similar to many elliptical galaxies?
- Why do spiral galaxies appear to be bluer than elliptical galaxies?
- What type of galaxy do we live in?
- What happens when two elliptical galaxies collide?
- Do elliptical galaxies have dark matter?
How are elliptical galaxies different from spiral galaxies?
Elliptical galaxies are preferentially found in galaxy clusters and in compact groups of galaxies. Unlike flat spiral galaxies with organization and structure, elliptical galaxies are more three-dimensional, without much structure, and their stars are in somewhat random orbits around the center.
What is the major difference between an elliptical galaxy and a spiral galaxy quizlet?
The major difference between spiral and elliptical galaxies is that elliptical galaxies lack a significant disk component, although both types have the halo component. You just studied 32 terms!
Do spiral galaxies become elliptical galaxies?
It's easy to imagine loose spiral galaxies wrapping up into tighter spirals and eventually becoming elliptical galaxies. ... Alas, normal galaxies do not likely evolve directly from one type to another. Spirals don't seem to be ellipticals with arms, nor do ellipticals appear to be spirals without arms.
What are the 3 different types of galaxies?
What Kinds of Galaxies Are There? Astronomers classify galaxies into three major categories: elliptical, spiral and irregular.
What is the definition of a spiral galaxy?
Spiral galaxies are twisted collections of stars and gas that often have beautiful shapes and are made up of hot young stars. ... Most spiral galaxies contain a central bulge surrounded by a flat, rotating disk of stars.
Why does an elliptical galaxy look like one giant star?
An elliptical galaxy looks as if it is a giant star because it lacks the distinctive structure of a spiral galaxy, where the bulge is surrounded by a...
Is this a photo of a spiral galaxy or an elliptical galaxy and how do you know?
Is this a photo of a spiral galaxy or an elliptical galaxy, and how do you know? It is a spiral galaxy, because we can see a dusty disk going across the center. This photo shows the Large Magellanic Cloud, or LMC for short. ... The oldest stars in these galaxies are much older than the oldest stars in our own Milky Way.
How are the centers of many spiral galaxies similar to many elliptical galaxies?
Bith are types of galaxies that have many objects held together by gravity. Spiral galaxies have lots of gas and dust which means it has younger stars. Elliptical galaxies have littlr gas and dust which means it has older stars. As you can see, spiral galaxies and elliptical galaxies are very alike and diffferent.
Why do spiral galaxies appear to be bluer than elliptical galaxies?
Spiral galaxies, such as the one to the lower left, are continually forming stars in their spiral arms. The bright blue clumps dotted along the spiral arms are sites of intense star formation. ... This difference in shape is due to the way that stars orbit the center of the galaxy.
What type of galaxy do we live in?
The Milky Way is a large barred spiral galaxy. All the stars we see in the night sky are in our own Milky Way Galaxy.
What happens when two elliptical galaxies collide?
When the galaxies collide, it causes vast clouds of hydrogen to collect and become compressed, which can trigger a series of gravitational collapses. A galaxy collision also causes a galaxy to age prematurely, since much of its gas is converted into stars.
Do elliptical galaxies have dark matter?
In conclusion, elliptical galaxies could have dark matter halos similar in mass and extent to those in spiral galaxies (Danziger, 1997), but the evidence is not so clear and it cannot even be completely rejected that they possess no dark halo at all.
