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What shape of galaxy is small has older stars very little dust and a bright center?
The galaxy you are describing is most likely an elliptical galaxy. Elliptical galaxies are typically smaller than spiral galaxies, contain older stars, and have very little interstellar dust and gas, which contributes to their lack of new star formation. Their bright centers are a result of the dense concentration of stars, particularly older red stars, in the core.
What are galaxies that have very bright centers and very little dust or gas called?
Galaxies with very bright centers and very little dust or gas are called elliptical galaxies. These galaxies are primarily made up of old stars and have a smooth, ellipsoidal shape with little ongoing star formation.
Do Galaxies contain millions of stars?
Smaller galaxies do. Larger galaxies contain billions or even trillions of stars.
Why do some stars appear smaller than others?
some stars seem smaller than the other because they are further away from earth. many stars are also located in different galaxies and are very bright therefore making it slightly visible.
What type of galaxie is smaller and fainter than other galxies?
Dwarf galaxies are smaller and fainter than other types of galaxies. They typically contain fewer stars and have lower luminosity compared to larger galaxies like spiral or elliptical galaxies. Despite their size, dwarf galaxies can be important for understanding galaxy formation and evolution, often serving as satellites to larger galaxies.
Galaxies that have a bright center that contains very little dust and gas?
Stars come in a variety of types. Blue stars, which are very hot, tend to have shorter lifetimes than red stars, which are cooler. Regions of galaxies where stars are currently forming are therefore bluer than regions where there has been no recent star formation. Spiral galaxies seem to have a lot of gas and dust, while elliptical galaxies have very little gas or dust.
What galaxies are massive blobs of stars?
Elliptical galaxies are massive blobs of stars characterized by their round or ellipsoidal shapes. These galaxies are composed mainly of older stars and have little to no ongoing star formation activity.
Why do spiral galaxies have a bulge from which several arms come out?
Spiral galaxies have a central bulge due to the accumulation of stars, gas, and dust, which results from gravitational interactions and the merging of smaller galaxies over time. The spiral arms are created by density waves that travel through the galaxy, causing regions of higher density where stars are formed. These arms are often sites of active star formation, making them appear bright and prominent against the darker regions of the galaxy. The combination of the bulge and spiral structure gives these galaxies their characteristic appearance.
What are similarities between elliptical and spiral galaxies?
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
Why are spiral galaxies so bright?
The brightness of normal galaxies is mainly due to stars; quasars are believed to get most of their energy output from the black hole at their center.
What are the bright lights in night sky that are NOT stars or planets?
The moving bright lights may be aircraft, satellites, or meteors. The bright points that are not stars or planets may also be galaxies, asteroids, comets, or the moons of planets.
Why dwarf stars are so bright?
Dwarf stars are NOT "so much Bright", the smaller the star is (provided it is on the main sequence) the less intrinsically bright it is.
