A light phenomena of Solna region has puzzled over Sunday evening. 50th century images have been received by Aftonbladet and on Twitter speculated in what it can depend on. Some say the northern lights.
But here is the answer - light pillars. And google results in English should search the "light pillars".
- It is the light that is reflected in ice crystals that form in the air when it is cold now, says Joseph Runbäck, meteorologist at SMHI.
He saw himself a related phenomenon on Sunday when he took a walk.
- What I saw was a traditional halo effect that occurs when sunlight breaks through ice crystals and mirrored, says Joseph Runbäck.
At night, the phenomenon can occur because the moon or artificial light sources shone, for example streetlights. "The color may vary depending on the light source color. Although the intensity may be different at different heights because the amount of ice crystals can vary with height and orientation of the crystals and purity "writes SMHI on their site.
- I was hoping it would be aurora although I felt that it was impossible, says Lena looked pillars from his balcony in Frösunda.
Northern lights on the other hand are formed by particle radiation from the sun, which in contact with the Earth's atmosphere creates undulating light phenomena in the sky, writes SMHI.