A double moonbow has appeared in the night sky alongside the Aurora Borealis in a 'once in a lifetime' moment.
Photographer Andy Walker has been taking pictures of the Northern Lights in the Highlands for 10 years and said he has never seen anything like it.
Moonbows are optical illusions caused when moonlight is refracted through water droplets.
Dad-of-two Andy who runs a B&B in Durness, Sutherland, as well as working for the RAF, is used to tourists asking about seeing the Aurora Borealis.
The 51-year-old captured the images of the two moonbows on Monday night.
The photographs were taken using a long exposure of between six to 10 seconds.
He said: “The moonbow in particular was very unusual. It was taken with long exposure and set on a tripod.
“The moon was so bright.
“We've been in this house five or six years, I've never seen a moonbow before.”
And he added: “There was a bit of luck involved. I was in the right place at the right time.
“About 10 minutes after I started taking pictures the rain stopped and it disappeared behind a cloud.”
“It was a once in a lifetime moment.”
