Langsung ke konten utama

Aurora Natural Phenomenon

Do you know what is aurora? Aurora sometimes referred to as polar lights, northern lights (aurora borealis), southern lights (aurora australis), is a natural light display in the Earth's sky, predominantly seen in the high-latitude regions (around the Arctic and Antarctic). Auroras are the result of disturbances in the magnetosphere caused by solar wind. These disturbances are regularly strong enough to alter the trajectories of charged particles in both solar wind and magnetospheric plasma. These particles, mainly electrons and protons, precipitate into the upper atmosphere (thermosphere/exosphere). The resulting ionization and excitation of atmospheric constituents emits light of varying color and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of acceleration imparted to the precipitating particles. Precipitating protons generally produce optical emissions as incident hydrogen atoms after gaining electrons from the atmosphere. Proton auroras are usually observed at lower latitudes. Aurora was actually divided into two kinds, it is Aurora Borealis and Aurora Australis. Aurora Borealis is an aurora that happened in the northern regions. Aurora Australis is an aurora that happened in the southern regions. Both Aurora’s can be seen in the northern or southern hemisphere, in an irregularly shaped oval centred over each magnetic pole. Scientists have learned that in most instances northern and southern auroras are mirror-like images that occur at the same time, with similar shapes and colours. Auroral displays can appear in many vivid colours, although green is the most common. Colours such as red, yellow, green, blue and violet are also seen occasionally. The auroras can appear in many forms, from small patches of light that appear out of nowhere to streamers, arcs, rippling curtains or shooting rays that light up the sky with an incredible glow. Because the phenomena occurs near the magnetic poles, getting as close to these poles as possible will rapidly increase the chances of viewing aurora. As the magnetic south pole is in Antarctica, unless your a scientist working there, it usually leaves the northern hemisphere the most sensible option of viewing aurora. It should be mentioned however that during strong solar storms, aurora australis are quite often visible in places south from Australia. But generally speaking, the best places to watch the aurora are usually are North America or Europe. In North America, the north western parts of Canada, particularly the Yukon, Nunavut, Northwest Territories and Alaska are favourable. In Europe, Scandinavia, particularly the Lapland areas of Norway, Sweden and Finland is very good for aurora viewing. Iceland is also a good place for auroras and Auroral displays can also be seen over the southern tip of Greenland. That’s all about aurora! Maybe you guys can add visiting parts of the world to see one of the most breathtaking phenomenon which is aurora to your bucketlist. It is worth to try!

Komentar

  1. Great post and pictures of northern lights are wonderful. To see this beauty plan your Northern Lights Adventure trip now.

    BalasHapus

Posting Komentar

Postingan populer dari blog ini

BIOGRAPHY Gita Savitri Devi

Gita Savitri Devi, she is one of the inspirational person that I’ve adore since Junior High. Who is she actually? Born on July 28, 1992, in Indonesia, Gita Savitri was just an ordinary girl and grew up to become one of the most successful Youtuber in Indonesia. Most of the content in her youtube channel involves her opinions on politic issues, and interesting vlogs. She was known for her clever personality. Before she was having college in Germany, she has already accepted in FSRD ITB, but she prefered to continue her education abroad. In 30 Oktober 2010, she went to Berlin for the first time. You guys might wonder how she adapted in a foreign country right? By her experience there, she stated that Germans in her college were pretty anti-social, but the key to adapt there is by being friendly. She said that it is important to manage time, because she had to separate her time for work, and having college at the same time. She chose Chemistry major in Freie University, and fina...

My Dream

I'm 16 years old, I was born in Cimahi, and my parents decided to name me as Feodora Putri Humaira. 'Feodora' was derived from Greek language, it means God's blessing, Putri was derived from Indonesian language that means a girl; and 'Humaira' was actually a nickname that Rasulullah (peace be upon him) gave to Aisya. My parents hoped that I as an individual; could be a girl that depict the one of the best Muslima that ever lived, Aisya. I'm the only child, well you could potray me as a spoon-fed girl because of that fact; but YES, I admit that I was a spoiled girl back then. As I had grown up, I realised that I need to change. I need to be more independent and to make my parents' aspiration when I was born; to be a reality. I need to be a figure that I was named for. From that point, I started to change my mindset to get out from my comfort zone. Usually in my leisure time, I only did non-productive things; for instance: scrolling instagram timeline, p...

PROMETHEUS (The 7th Pekan Ilmiah) Event

11th May 2018, was the day we experienced the most scientific exhibition in our school. The event was called PROMETHEUS, and this event was an obligatory for us 10th grader to attend. There was some stalls that offers research based learning exhibition by the 11th grader students' to present their work. In fact they had prepared for 4 months to make their project of research based learning. There were food bazzar, talkshows, and competitions as well. I hope that my vlog could explain more detail of the event. Please watch it! Thanks! https://youtu.be/yPDl_uUzPXY