A Galaxy A Galaxy: Characteristics, Contents and Types Galaxies are huge and contain billions of headliners. They contain all of the heros of the Herzspring-Russell diagram, open cluster, emission, nubula, reflexion nubula, nova remnants and supernova remnants. We have three different and distinct types of galaxies, which are gyrate galaxies, eluptical galaxies, and last but not least irregular galaxies. The off-white Way galaxy, which is a representative of a curlicue galaxy, is essentially lens-shaped. Its circumference is about 120,000 light years across. On a dark summer night, we are able to see a few of the Milky Ways arm.
The Milky Way, as all he lical galaxies, rotates on its axis. However, it does not rotate uniformly. The budge rotates much sharp than the arms and it takes about 250 million years to make a single rotation. In the Milky Way galaxy, as in all spiral galaxies, there are two star populations. Population I Stars are similar to our sun. Those stars are rel...If you difference to get a full essay, order it on our website:
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