"There was some pretty awesome airglow on this night. With cloud rapidly approaching we had to be quick and get our shots in. Thirty minutes after this was taken it was completely overcast," Wilson wrote of the image.
"It's winter here when the Milky Way galaxy is at its most visible, meaning more dark hours to get out there and capture it," Wilson told the Herald last year.
Another factor was the lack of light pollution in the South Island, making it easier to capture the galaxy.
The incredible landscapes of the South Island feature in his images. Photo / Paul Wilson Images
New Zealand is one of only three countries in the world to have a Gold Rated International Dark Sky Reserve - the Aoraki Mackenzie Dark Sky Reserve on the South Island.
This dark sky reserve is also the biggest in the world, and includes the Aoraki Mt Cook National Park and the villages of Lake Tekapo, Twizel and Mt Cook.