explain different type of constellations and explain allso plsssssssssssssss!!!!!! i will mark brainleast to whom will give 1st ans
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Constellations are entirely imaginary. They’re just groups of stars which seemed, to early civilised humans, to make patterns or pictures in the sky, most of which accompanied or inspired different legends. The Greek gods in particular had a habit of changing important people and/or animals into constellations, thus we have Perseus, Andromeda and Pegasus among others. For the most part, the stars that make them up are actually nowhere near one another in space — they’re merely in the same line of sight (cosmic direction) as seen from Earth.
The names and patterns of the constellations vary from culture to culture. For example, the constellations in Chinese culture are very different to the ones we know in the more western countries.
The constellations are also very much subject to human caprice; stars can be, and occasionally are, reassigned from one constellation to another. For example, there’s one star in Pegasus that was originally part of neighbouring Perseus. Constellations can also be broken up into smaller ones. Argo Navis, the ship of the Argonauts of legend (currently visible only in the Southern hemisphere) was so massive and unwieldy, it was broken down into three smaller asterisms: Vela, the Sails; Puppis, the Poop Deck; and Carina, the Keel. Carina, of course, is home to the Carina nebula and the famous star Eta Carinae and its self-created nebula, the Homunculus nebula. (Eta Carinae does occasionally rise above the horizon in the south of England where I live… not that we can see it with the naked eye).
If you wanted to, you could quite easily make up your own constellations. It’s no different from seeing pictures in the clouds. But bear in mind that, if you do establish your own personal system, no astronomer will understand which bit of the night sky you’re referring to!
The names and patterns of the constellations vary from culture to culture. For example, the constellations in Chinese culture are very different to the ones we know in the more western countries.
The constellations are also very much subject to human caprice; stars can be, and occasionally are, reassigned from one constellation to another. For example, there’s one star in Pegasus that was originally part of neighbouring Perseus. Constellations can also be broken up into smaller ones. Argo Navis, the ship of the Argonauts of legend (currently visible only in the Southern hemisphere) was so massive and unwieldy, it was broken down into three smaller asterisms: Vela, the Sails; Puppis, the Poop Deck; and Carina, the Keel. Carina, of course, is home to the Carina nebula and the famous star Eta Carinae and its self-created nebula, the Homunculus nebula. (Eta Carinae does occasionally rise above the horizon in the south of England where I live… not that we can see it with the naked eye).
If you wanted to, you could quite easily make up your own constellations. It’s no different from seeing pictures in the clouds. But bear in mind that, if you do establish your own personal system, no astronomer will understand which bit of the night sky you’re referring to!
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