The aurora is caused by material thrown out from the sun interacting with the earth’s magnetic field, producing  light from energised gas molecules in the upper atmosphere. Best known as the Northern Lights, this phenomenon lights up the night sky with an uncanny display of colours. Varying from a green glow on the horizon,  a shimmering luminescent curtain , to streaming fronds of red and yellow light , this is an experience you will not forget.

At the Spring and Autumn equinoxes, promontories and harbours along the north coast offer prime viewing sites or join Caithness Astronomy Group at Castlehill  Heritage Centre, which has been  awarded a designated  “ Dark Sky” status. At this  safe spot with all facilities but without light pollution, Caithness Astronomy Group  offer  guided star observation in the courtyard followed by fascinating talks and presentations by visiting authorities  and local enthusiasts.

Check out the Astronomy Group’s programme on SpangleFish.   

Check out the aurora forecasts on Spaceweather or Aurora-Service.            

Photos on this page by Maciej Winiarczyk, Ken Crossan.