What is the meaning of the text "Северный полярный круг" in the image?

The text "Северный полярный круг" means the Arctic Circle. Explanation: 'Северный' translates to 'Northern', 'полярный' translates to 'polar', and 'круг' translates to 'circle'. Therefore, "Северный полярный круг" refers to the Arctic Circle, a significant geographical line of latitude.