Aurorae are produced by the collision of charged particles from Earth's magnetosphere, mostly electrons but also protons and heavier particles, with atoms and molecules of Earth's upper atmosphere (at altitudes above 80 km (50 miles). The particles have energies of 1 to 100 keV. They originate from the Sun and arrive at the vicinity of Earth in the relatively low-energy solar wind. When the trapped magnetic field of the solar wind is favourably oriented (principally southwards) it reconnects with Earth's magnetic field, and solar particles enter the magnetosphere and are swept to the magnetotail. Further magnetic reconnection accelerates the particles towards Earth. The collisions in the atmosphere electronically excite atoms and molecules in the upper atmosphere. The excitation energy can be lost by light emission or collisions. Most aurorae are green and red emission from atomic oxygen. Molecular nitrogen and nitrogen ions produce some low level red and very high blue/violet aurorae. The light blue colors are produced by ionic nitrogen and the neutral nitrogen gives off the red and purple color with the rippled edges. Different gases interacting with the upper atmosphere will produce different colors, caused by the different compounds of oxygen and nitrogen. The level of solar wind activity from the Sun can also influence the color of the aurorae.(wikipedia)
Aura
Everyone is surrounded by an electromagnetic field, and this field is called an aura. The aura has been depicted throughout history in literature and paintings.
The essential nature of the aura usually seen is astral and electrovital. The magnificent phenomena of radiation that astronomers can discern at times of eclipse, long streamers with rosy and other colored light flashing forth from the body of the sun, are not flames nor anything of the sort, but are simply the electrovital aura of the solar body - a manifestation of solar vitality, for the sun in occultism is a living being, as indeed everything else is.
An extremely subtle and therefore invisible essence or fluid that emanates from and surrounds not only human beings and beasts, but as a matter of fact plants and minerals also. The aura is one of the aspects of the auric egg and therefore the human aura partakes of all the qualities that the human constitution contains. (www.experiencefestival.com)
Aura photography and Kirlian photography are two different schools of thought regarding the same topic -- how to photograph the electromagnetic field which surrounds the human body. And not just the human body, all living things are surrounded by an electromagnetic field which many refer to as an aura.
It looks like there could be link between formation of Aurora Borealis and Auras of other living beings …!!
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