Jakarta –
A brilliant aurora and Southern Dawn there are types of phenomena Aurora. This is a natural phenomenon in the form of the appearance of light in the sky in the form of beams, ribbons or curtains, usually red, green and purple.
According to the Journal reported by LAPAN, Aurora is also known as Polar Lights because this phenomenon is visible and often appears in polar areas and high latitudes. Based on the location of the scene, there are two types of Aurora phenomenon, namely Aurora Borealis and Aurora Australis.
What is the Aurora Phenomenon?
Extracted from the Magazine ‘Luminous Phenomena in Space’ by Pussainsa LAPAN BRIN, What Aurora means is a natural phenomenon in the form of an appearance of light high in the Earth’s atmosphere that seems to dance with attractive colors.
According to the Meteorological Dictionary, an Aurora is a periodic emission of high atmospheric radiation in high and middle latitudes caused by nitrogen molecules (N2), nitrogen ions (N2) and oxygen atoms (O2) which are often associated with magnetic storms. Auroras take the form of beams, ribbons, or curtains; usually red, green, and purple.
The difference between Aurora Borealis and Aurora Australis
The so-called A brilliant aurora It is the Aurora phenomenon that can be seen in the northern polar circle. Aurora Borealis is a light produced by electromagnetic forces around the north celestial pole, and can be seen as red, green or white stripes.
While the name Southern Dawn the Aurora phenomenon that can be seen in the southern polar circle. Aurora Australis is a light caused by electro-magnetic forces in the ionosphere layer around the South celestial pole, and can be seen as red, green or white stripes.
Reported by the Magazine ‘Space Weather’ by Pussainsa LAPAN BRIN, at first it was thought that the phenomenon of Aurora appeared only in the northern hemisphere of the Earth, but James Cook saw the same thing in a hemisphere south of the Earth and called it Aurora Australis.
The process of the Aurora Phenomenon
Auroras occur when charged particles originating from the Sun are released through coronal mass ejections (CMEs) or coronal holes. Particles called the ‘solar wind’ reach the Earth and interact and disturb it Earth’s magnetic field.
These particles are accelerated more and more by the solar wind and continue to move convergently towards the poles, forming oval rings at the two poles of the Earth. These charged particles move in spirals along magnetic field lines.
Due to the movement of charged particles along magnetic field lines, these charged particles enter the atmosphere and interact with gases in the atmosphere, especially around the Earth’s magnetic poles.
When charged particles interact with a gas, a transfer of energy occurs. The gas receives energy and is excited and therefore emits energy and photons of a specific wavelength that appear as colored grays in the sky.
Watch video: A strong storm is behind this week’s spectacular Aurora Sights
(wia/imk)
2024-05-12 09:32:13
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