A halo, a special atmospheric optical phenomenon similar to the glow around a light source, was seen in Moscow on Friday (December 6th), Alexander Sinenkov, a leading expert at the Phobos weather centre. DEA News.
“Hale is caused by the refraction of sunlight into small ice crystals. On cold days in winter, this phenomenon happens very often … Most often, it happens when there are clouds at a height of about 6 to 10 thousand (meters). , this phenomenon is observed,” he said.
Rare weather event before observed Moscow residents – “two suns” appeared in the sky above the city.
Experts call this phenomenon a parhelion, a kind of “halo effect”, when another “sun” is observed at a short distance from each other. A similar phenomenon occurs near the moon – it is called parcelena.