Even the ocean turned pink: a photo of an unusual Aurora over Norway

Guide Markus Varick took this picture in tromsø in Norway on October 24. According to him, the pink lights were so bright that even the ocean turned pink — this caused delight among observers.

Pink Northern lights are also called "nitrogen fringe". Most Northern lights are green is due to the fact that the oxygen atoms glow when affects the energetic particles at an altitude of 100-300 km above the surface. The pink color can be seen when energy particles hit nitrogen molecules at an altitude of 100 km or lower.

Earlier, a stream of solar wind caused rare red lights to appear over Denmark. It is worth noting that the country is located at the 55th parallel of North latitude. As a rule, the Northern lights can be seen in the high latitudes of the Northern hemisphere-67-70 degrees North latitude. However, during periods of strong solar activity, the auroral oval becomes wider and the Aurora can be seen in lower latitudes.