World

British photographer to register rare images of the Aurora Boreal, in the North Pole.
Photographer records images of rare Aurora Boreal

The British photographer Mark Humpage, an expert in photos of weather phenomena, to register rare images of the Aurora Boreal, in the North Pole.

Humpage spent six days in the region of Karasjok, in the Arctic Circle, to make the images of the luminous phenomenon, created from the impact of electrical particles carried by the wind in the solar terrestrial magnetic field.

The shock creates a bright, usually in colour green, yellow or violet, observed in the heavens at night in regions near the poles.

The Auroras Boreais are rare, and scientists estimate that the probability of having it is greater in the period between September and October and February to March.

Due to darkness during the night in these areas, the registration of images from Auroras Boreais are difficult and photos of phenomena are rare.
Performance

Of the six days spent in the region, four were used for the area and choose the best position to make the photos.

To capture the images, Humpage was two nights photographing the entire phenomenon in Karasjok, where the temperature recorded -20 º C.

According to him, the images "are spectacular, magical and continuous." Due to the lack of light during the night, each exposure took 30 seconds to up to four minutes.

"It was one of the most amazing pictures I have seen," says the photographer. "There were rivers of color moving and covering the whole sky from horizon to horizon," account.

Links: http://ciencia.hsw.uol.com.br/questao471.htm