Are elliptical galaxies brighter than spiral galaxies?
Stars in both galaxy types orbit around a galactic centre, which is thought to hold a supermassive black hole. Spiral galaxies are brighter and more colorful than elliptical galaxies, mainly due to their generation of more new young stars.
Are elliptical galaxies the brightest?
While spiral galaxies are bright, elliptical galaxies are dim. Spiral galaxies are hotbeds of star formation, but elliptical galaxies aren’t nearly as prolific because they contain less gas and dust, which means fewer new (and brighter) stars are born.
Are elliptical galaxies bluer than spiral galaxies?
Why not the opposite? So the answer to your question is: The reason spiral galaxies are not red is that they keep forming new stars, the most luminous of which are blue. And the reason elliptical galaxies are not blue is that they’re unable to form new stars, so only the red ones are left.
What is the brightest spiral galaxy?
One of the brightest galaxies in planet Earth’s sky is similar in size to our Milky Way Galaxy: big, beautiful M81. This grand spiral galaxy can be found toward the northern constellation of the Great Bear (Ursa Major).
What is the main difference between elliptical and spiral galaxies?
Spiral and barred spiral galaxies are subclassified by how tightly wound the spiral arms appear. Elliptical galaxies don’t show any structure, but have a smooth ellipsoidal shape, appearing as a large spherical or elliptical ball of stars. Elliptical galaxies can be classified in terms of how long and thin they appear.
What is the difference between a spiral galaxy and a elliptical galaxy?
Which galaxies are the brightest?
Excluding the Large and Small Magellanic Clouds, visible from Earth’s Southern Hemisphere, the Andromeda galaxy is the brightest external galaxy you can see. At 2.5 million light-years, it’s the most distant thing most of us humans can see with the unaided eye.
What is the second brightest galaxy?
|Milky Way||−6.5||Sagittarius (centre)|
|Large Magellanic Cloud||0.9||Dorado/Mensa|
|Small Magellanic Cloud (NGC 292)||2.7||Tucana|
|Andromeda Galaxy (M31, NGC 224)||3.4||Andromeda|
How are spiral galaxies and elliptical galaxies different quizlet?
Spiral and elliptical galaxies are very similiar and different. 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.
Which of the following is not a difference between spiral and elliptical galaxies?
Which of the following is NOT a difference between spiral and elliptical galaxies?” Your answer : Spiral galaxies are younger, whereas elliptical galaxies are older. Correct!
Are elliptical or spiral galaxies bigger?
The biggest galaxies in the Universe are elliptical galaxies. They’re the result of many collisions between smaller galaxies, and all these collisions have destroyed the delicate spiral structure that we see in our own galaxy.
What is the difference between the 3 types of galaxies?
As their name suggests, elliptical galaxies are round or oval, with stars distributed fairly uniformly throughout. They have a bulge and halo, like spiral galaxies, but don’t have the flat disk of stars. The stars in ellipticals tend to be older. Irregular galaxies have no identifiable shape or structure to them.
What is the brightest star in the galaxy?
The reigning “brightest star” champion is Eta Carina, with a whopping solar wattage of 4.7 million suns. But according to astronomers, it’s hard to pin down an exact brightness, or luminosity, for these scorching stars, so they could potentially shine with a similar amount of light.
What galaxies are the brightest?
Which type of galaxy is the brightest?
The most powerful active galaxies are quasars. They are among the brightest and most distant objects in the universe. A quasar may emit more energy than an entire galaxy of stars from a region no bigger than our own solar system.
What is the major difference between a spiral galaxy and an elliptical galaxy?
Spiral galaxies have a flat disk like shape and a bulging center with spiral arms consisting the disk. Elliptical galaxies are ellipsoids with no clearly visible internal structure. Spiral galaxies have a very dense nucleus and a region of stars bulging outwards from the disks and, therefore, called the central bulge.
Why are the spiral galaxies bluer than the elliptical galaxies quizlet?
An elliptical galaxy lacks a disk component. elliptical. Why do spiral galaxies appear blue in color? Their light output is dominated by hot, massive blue stars.
What is the difference between a spiral galaxy and an elliptical galaxy?