The aurora borealis and noctilucent clouds over Caithness, Scotland
Media playback is unsupported on your device

Clouds and aurora in rare night sky double for sky gazer

21 August 2013 Last updated at 17:22 BST

An amateur astronomer in the north of Scotland has captured a rare form of cloud and the northern lights on film at the same time.

Rolling noctilucent - "night-shining" clouds - are rare enough themselves, but while Maciej Winiarczyk was filming them in the skies above Caithness, the aurora borealis also put on a vivid display.

He spoke to the BBC about night filming the two phenomena.