I was lucky to see the Northern Lights (also known as "Aurora Borealis" or southern version "Aurora Australis") third year in a row. First Porjus and Kiruna, Sweden in 2013, secondly Skaftafell and Blue Lagoon, Iceland in 2014 and lastly Lyngen, Norway in 2015. Here are 2 minutes long photo lapse video of my photographs.
I created this video from long-exposures continuous shots. I wasn't intended to do a time lapse, but somehow I managed to compile them together despite some of them are not in the correct angle.
Gears I've used;
Pentax K-30 + 18-55 WR Kit Lens + Samyang 14mm
Pentax K-3 + Samyang 14mm
If you would like to know more about Northern Lights here is a quick guide for you:
A Tale of the Northern Lights - Yigit Yuksel | Photography