Fortune Telling Collection - Zodiac Analysis - Orion cloud _ Orion nebula
Orion cloud _ Orion nebula
The Great Orion Nebula (M42) is a nebula in the Milky Way, which is about 1500 light-years away from the Earth. It is located on the cantilever of Orion in the Milky Way, with a diameter of 16 light years, and there are many young stars in it.
Orion nebula
Orion Nebula is a huge luminous gas cloud, ranking 42nd in messier's list of celestial bodies, so it is also called M42. In the telescope, the Orion Nebula is like a bird spreading its wings, and it is also the brightest nebula in the whole day, which can be seen by the naked eye where there is no light pollution.
As shown in the above picture, the brightest part of the circle looks like a star to the naked eye. In fact, it is not a star. After observing with a telescope, we can see that it is actually a nebula, that is, the Orion nebula and the apparent star.
The picture below shows the photos of Orion Nebula taken by Hubble on 20 1 171October 29th. It can be seen that there are many filamentous structures in the nebula, which are formed by shock waves. The luminous points in the nebula are young stars, many of which are only about 1 10,000 years.
In the Orion Nebula, there are thousands of young stars and dense clouds that will become stars. These stars emit intense radiation, which is then absorbed by the surrounding interstellar gas, which radiates energy in the form of visible light, forming the Orion nebula we see.
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There is a protruding cloud in the Orion Nebula, the famous Horsehead Nebula, which is named after its appearance like the horsehead on the earth. Horsehead? It is about 1 light-year high.
The Horsehead Nebula is a dark nebula, set off by bright star clouds around it. In the Horsehead Nebula, the brighter spots are newly formed stars, which may be only a few hundred thousand years old.
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