Circling Plane and Dancing Aurora

As appeared on the National Geographic News although the northern lights display wasn’t at first visible to the naked eye, TWAN photographer P-M Hedén captured a faint green “aurorabow” in this long-exposure photo sequence from Vallentuna lake, 30 kilometers north of Stockholm, Sweden. The moonlit clouds, circular star trails, and the path of an airplane coming in for a landing at Stockholm-Arlanda Airport are visible in this image.