Her entry in the Milky Way Photographer of the Year awards, run by travel photography blog Capture the Atlas, was one of 25 selected from more than 5000 entries photographed in 15 countries.
The winners are released each May during peak "Milky Way season", when the stars can best be captured in all their glory.
"It is the second year I have entered the competition," Ms Roberts said.
"I entered in 2022. I was lucky this year as my first choice of location clouded over.
"There are few places on the planet as dark as the spot where my photo was taken, which was from Bluff Hut in the Southern Alps."
She gave credit to Hokitika helicopter pilot Matt Newton, from Precision Helicopters, for selecting the location.
Capture the Atlas says the quality of the image, the story behind the shot and the overall inspiration that the photograph can provide are the main factors in selecting winners every year.
Ms Roberts is now doing a photography workshop around the South Island and will soon hold a workshop on the West Coast promoting Astro photography. — The Greymouth Star