Fredrik Broms, a marine biologist who originally comes from Sweden, won second and third prize in the Greenwich Royal Observatory's Astronomy Photographer of Year Competition.
"The the overall quality of the pictures was just amazing, so I'm really honoured to have two of my pictures picked out," Broms told The Local.
He said he had been obsessed with the Aurora Borealis ever since he came to Tromsø to study.
"That was the first time that I saw the Northern Lights and it was really love at first sight," he said. "I guess that every aurora display is so completely different that it more or less feels like each time is the first time you see them. That's what makes it so fascinating for me."
Earlier this year Broms published "The Northern Lights: a guide" with Pål Brekke of the Norwegian Space Centre.