The Aurora (what is it and whats behind it)
science·@camzy·
0.000 HBDThe Aurora (what is it and whats behind it)
Hello steemians Wrote about [how a compass works](https://steemit.com/science/@camzy/the-compass-how-it-works) and during my research on that i found something very interesting. <hr> <h2>Aurora</h2>  [source](https://www.tes.com/lessons/vEE9_LnB8KyiqA/copy-of-aurora-borealis) <hr> we all must have seen an image of it either while surfing the internet or watching TV. i have always thought it was an edited picture ever since i was little not until when i first read about it from a book and also watched it on the discovery channel then my doubts were cleared, so while researching on the compass i saw it again cause it has something to do with the Earth's magnetic field. <hr> so firstly whats an Aurora so many definitions has been given to an Aurora. some see it as an art in the sky, which is true! some religious people see it as a sign of there gods communicating with them, who knows? <hr> <hr>  [source](https://www.youtube.com/watch?v=Xecdzrho71Y) <hr> <hr> but Aurora according to a well simplified definition which said >Auroras are produced when the magnetosphere is sufficiently disturbed by the solar wind that the trajectories of charged particles in both solar wind and magnetospheric plasma, mainly in the form of electrons and protons, precipitate them into the upper atmosphere (thermosphere/exosphere) due to Earth's magnetic field, where their energy is lost. in addiction Aurora are results of gaseous collision in earth's atmosphere <hr> Auroras doesnt only occur on earth, it also occurs in the other giant gas in our solar system such as jupiter, uranus and so on, they all have thick atmosphere and strong magnetic fields so auroras occurs daily there, although there auroras are different from Earth's own caused them formed under different conditions. in addiction auroras also occurs in our worlds outside our solar system (perhaps exo planets as well) <hr> Venus has an aurora generated by its stretched-out magnetic field (a magnetotail). Mars also experiences local auroras due to magnetic fields in the crust. away from that lets discuss about the auroras that occurs on earth <hr> <hr>  [source](https://shop.auroramj.com/#/shop) <hr> <hr> Auroras easily occurs on the northern and southern pole of earth, Auroras that occur in the northern hemisphere are called ‘Aurora Borealis’ or ‘northern lights’ and auroras that occur in the southern hempishere are called ‘Aurora Australis’ or ‘southern lights’. The aurora can appear in may forms, some can be small patch of lights and others large reflection of streaming lights that creates harmony in the sky. so many people have been asking why does it has various colours? but science simply tells us is a result of the various gases that collides in the sky like the most common aurora colour which is green is produced by oxygen molecules located 60miles above the earth. The rarest auroras which are red auroras are produced by high-altitude oxygen, at heights of up to 200 miles, while nitrogen produces blue or purple aurora. <hr> <hr> <h2>how does this sun particules get to earth?</h2> Generally, it is when there is an opening in the suns atmosphere that allows electrons and protons to flow out. In terms of auroras its a total different case, large amount of particles and molecules need to be colliding to create an image visible to the eye, so this usually requires quite a large opening in the sun, such as a coronal hole or a sunspot. <hr> <hr>  [source](http://www.aurora-service.eu/aurora-school/aurora-borealis/) <hr> <hr> The activity of aurora linking to sunspot has been suspected since 1880 *(hope am right)*. Thanks to research conducted since the 1950′s, we now know that electrons and protons from the sun are blown towards the earth on the solar wind, which i believed i said something about above. When this charged particles are blown by the solar wind to earth, they are largely deflected by the earth’s magnetic field. However, the earth’s magnetic field is weaker at either pole and therefore some particles enter earth’s atmosphere and collide with gas particles. The collision creates the image in the sky that is been seen as Auroras The lights of the Aurora generally extend from 80 kilometres (50 miles) to as high as 640 kilometres (400 miles) above the earth’s surface according to researches <hr> <h2>countries where you can see Auroras</h2> <hr> <hr>  [source](https://en.wikipedia.org/wiki/Aurora) <hr> <hr> As i have rightly said auroras are common on the northern and southern magnetic pole but if you are looking for a holiday location for you to get a clear view of an aurora in these locations 1. Alaska 2. The islands of Denmark 3. Aberdeen, Isle of Skye, Northern Highlands and Dunnet Head all in scotland 4. Northern Canada ( Calgary Ontario, Yukon Territory and Manitoba) 5. Greeland (you can see auroras almost everywhere but best locations are Kulusuk and Ammassalik) 6. Luosto, Nellim, Utsjoki, Ivalo and Kakslauttanen all in finland 7. Iceland (can be seen at Outside Reykjavik, Þingvellir National Park and sometimes the entire country. 8. in Norway it can been seen at Tromsø, Alta, Svalbard and Finnmark 9. Sweden (Kiruna, Abisko and Swedish Lapland) 10. Russia (Murmansk, Siberia, Kola Peninsula) so are you in any of this locations or planning to visit? just checked out the aforementioned spot to view an aurora :-) <hr> Reference [1](https://en.wikipedia.org/wiki/Aurora)-[2](https://www.space.com/15139-northern-lights-auroras-earth-facts-sdcmp.html)-[3](http://www.aurora-service.eu/aurora-school/aurora-borealis/)-[4](https://www.huffingtonpost.com/2011/01/27/10-best-places-to-see-the_n_814506.html) <hr> <h2>I am camzy the visual artist</h2>  <hr> https://steemitimages.com/DQmcGTgE9ztQ7QmWESyE7uVqLrUqfbAa1fsTCod6dmsFYjP/generic.gif <hr> https://steemitimages.com/DQmZAE2uEQuUBRWPcmr1YYQn8CbPJUTVuTp8CuDM9RsQdzj/received_1992879140947051.jpeg
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