Northern lights between clouds in Northwest Iceland #3
by RicardMN Photography
Title
Northern lights between clouds in Northwest Iceland #3
Artist
RicardMN Photography
Medium
Photograph
Description
Northern lights between clouds in Vididalstunga, Northwest Iceland.
An aurora (plural: auroras or aurorae), sometimes referred to as polar lights, northern lights (aurora borealis) or 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 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.
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.
Víðidalstunga is a small village near Víðidal in the former parish of Þorkelshólshreppur, Vestur-Húnavatnssýsla, Nordwest Iceland.
An ancient manor and noble family lived in the area was centuries since at least the early 14th century. Víðidalstungu Church was built in 1889 and contains an altar with paintings by the painter Ásgrímur Jónsson. (Description from Wikipedia)
Uploaded
November 9th, 2018
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