Boreales’s great show

The Northern Lights is present in many old legends in North Europe. They go from those who talk about the spirits playing the ball with a head of Morsa, on which they say they are the light that is reflected in the armor of the Valquirias (supernatural girls).

The name comes from the seventeenth century and is associated with Aurora and Bóreas. Aurora, the Latin Word for Dawn, refers to the Roman goddess Aurora. Boreas, is the Greek name for the god of the Noord -Wind. There are four types of auroras. The most common are those in which waves are produced such as in a curtain. There are bow, similar to a monocolor rainbow. The crown, which resembles a crown as a result of a variety of light rays, and the least usual, diffuse, difficult to detect with the naked eye. The Auroras are also observed on the South Pole and are called Austral Auroras.

The first step for a northern lights that occurs has to do with the sun. The sun, by what the expression of the coronal mass is called, radiates charged particles and creates the high speed Zonnevind. In other words, the charged particles broadcast by the sun are thrown by his rotation and escaped by holes in his magnetic field. Although Noorderlicht occurs all year round, their spectacularity is variable, because the solar emission of charged particles is not constant. Sometimes it is relaxed, but sometimes, because of solar storms, the emission becomes tumultuous and of great energy. In the period of solar storms it is when Boreal Dawn is more intense. It has been predicted that the next solar storm will take place in 2025. A good time to enjoy the Northern Lights.

The solar wind, formed by the charged particles that, from the sun, reach the upper part of the atmosphere at speeds that reach 72 million kilometers per hour, is deflected by the magnetic field of the earth. A magnetic shield that frees us from these particles, among other things. However, due to the magnetic lines of the magnetic field of the earth, a very small part of these particles is focused on the two poles. These, on top of both poles, collide against the atoms and molecules that form the atmosphere of the earth, causing flashes of colored light to cause. The color depends on the atom or molecule involved in the collision. The dominant colors are blue and purple, produced by nitrogen molecules and green and red, by oxygen. Because the composition of the atmosphere varies with the height, the colors of the dawn also change.

Because the solar wind is permanent, the Auroras occur every day of the year during the day. However, because of the human eye, they can only be observed at night. The optimum time is midnight. Moreover, in the North Pole, due to the weather, the months of February and March and September and November, the best for their observation are.