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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.
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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 spiral galaxies have very bright centers and little gas and dust?
No. They have a spiral shape.,
What type of galaxy includes little gas and dust and no longer produces stars?
the galaxy that contains no blue stars is I DO NOT KNOW and i would like to know the answer too
Do galaxies all have the same shape?
Galaxies may have any of four general shapes. Elliptical galaxies show little or no structure and vary in general shape from moderately flat and round or oval to spherical. Spiral galaxies have a small, bright central region, or nucleus, and arms that come out of the nucleus and wind around, trailing off like a giant pinwheel. In barred spiral galaxies, the arms extend sideways in a short straight line before turning off into the spiral shape. Both kinds of spiral systems are flat. Irregular galaxies are usually rather small and do not have a symmetrical shape.
What would happen if the Milky Way was a quasar?
If the Milky Way were a quasar, it would be incredibly bright and emit vast amounts of energy due to the supermassive black hole at its center consuming huge amounts of matter. The high energy output would impact the surrounding galaxies and alter the dynamics of the entire universe.
Compare and contrast the three types of galaxies?
Galaxies that appear to have a bulge in the middle and arms that spherical outward, like pinwheels, are spherical. Elliptical galaxies look like round or flattened balls. Galaxies that do not have regular shapes are known as irregular galaxies.
What was the name of Little Bear's wife from Indian in the cupboard?
Little Bear's wife in "The Indian in the Cupboard" was named Bright Stars.
Why cant you see black holes from earth?
Black holes emit so very little radiation they are hard to see. Many black holes lie at the center of galaxies and there they are hidden by stars and dust.
What are some physical characteristics of elliptical galaxies?
Elliptical galaxies are generally round or oval in shape, lacking the distinctive spiral arms seen in spiral galaxies. They typically have a smooth and featureless appearance, with older star populations and little ongoing star formation. Elliptical galaxies also tend to be more massive and contain mainly older stars.
What is a bright distant galaxy with a black hole in it?
Perhaps you are referring to quasars. Quasars are (galaxies with) extremely active galactic nuclei.Otherwise, as far as we know, many of the larger galaxies seem to contain a supermassive black hole in the center. If by black hole you are referring to standard black hole, not a supermassive, chances are all galaxies have quite a few. Within the local group of galaxies (Our cluster), the brightest galaxy as it appears from Earth is the Canis Major dwarf galaxy at 25,000 lightyears away. For galaxies not within our cluster, the brightest would be Markarian 231 at about 600,000,000 lightyears away.Comparing apparent magnitude. Canis Major's apparent magnitude (Little "m") is approximately 23.3m where Markarian 231 is about 13.8m yet the galaxy is 2,400,000% further away than Canis Major. An interesting side note about this galaxy is that it's supermassive blackhole is accompanied by a large quasar.
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.
Do all galaxies contain a black hole at their center?
Not all galaxies contain a black hole at their center. Some galaxies, like our own Milky Way, do have a supermassive black hole at their center, while others do not. The presence of a black hole in a galaxy depends on various factors such as the size and age of the galaxy.
