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some are big.
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Are some galaxies very small and have only a few thousand stars?
These small galaxies are believed to be the result of collisions between larger spiral galaxies. During such collisions pieces of the spiral arms get flung out into space, becoming small irregular galaxies.
What are facts about spiral galaxies?
milky way is a spiral galaxy spiral galaxies have younger stars in the arm and older stars in the middle
Do some spiral galaxies contain 1 trillion stars?
Yes. Some spiral galaxies do contain at least 1 trillion stars.
How old are the stars in spiral galaxies?
A spiral galaxy is just a type of galaxy but I can tell you that the stars in the middle are the oldest and the ones on the outside are the youngest.
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
What do the arms of spiral galaxies contain?
(Atoms) Stars, Dust.
What are the waves that are produced by stars and galaxies?
Density waves (they cause the spiral arms in disc galaxies).
What is a galaxy that has a dense core of stars and has spiral arms called?
All galaxies have a dense core of stars. Spiral galaxies, however, have arms that are often visible. There are two kinds of spiral galaxies: barred, where there appears to be a line running from arm to arm through the core, and ordinary, where there is no bar.
Large groups of stars that are part of spiral galaxies?
Milky way!
What are the spiral arms the site of?
Spiral arms are parts of galaxies - both the galaxies and their spiral arms are huge, by our everyday standards. Spiral arms basically contain most of what the galaxies contain - including stars, dust, gas.
What galaxy has the youngest stars?
Most new, young, stars can be found in the arms of spiral galaxies
Describe all the categories of galaxies?
the three main types of galaxies are spiral, elliptical and irregular spiral contains spiral arms contained gas, dust and they help new stars form
