By Jack Williams
These stunning images of the Milky Way make the galaxy appear like vibrant pinwheels, with the billions of stars rotation across the night sky at different intervals.
In order to shoot the unique works, photographer Christian Sasse took more than 1250 images of the galaxy, each shot on 30-second-long exposures.
Having captured so many images over a 10-hour period, in Siding Spring, New South Wales, Australia, Christian then layered the images to create a variety of styles.
Those where an image was selected every five minutes show tight gaps between the trails, the galaxy itself practically unrecognizable.
For images where the intervals were around one-hour or more, though, the Milky Way can be seen in much more clarity, the entire galaxy rotating around a zenith as part of a beautiful collection.
Christian, 58, from Surrey, British Columbia, Canada, said that he has come across many star trail images before, but had never seen a selection where the works were created using of different intervals.
Christian said: “I was surprised that no one seemed to have done this before – I found no prior reference.
“You can overlay the images in Photoshop or any star trail software, the results are very similar.
“By choosing different intervals between images the resulting pattern changes dramatically.”
The idea for these unique works came to Christian while he was considering how best to photography the galaxy while in the Southern Hemisphere.
Shooting a traditional star trail washed away the Milky Way itself, he said, but when he changed the intervals between successive images from 30 seconds to 50 minutes or more, the galaxy became far clearer.
The images were taken near the telescopes at Siding Spring Observatory on April 28 and 29, 2017.
Since then Christian has been invited to exhibit his works at the Science Center in Singapore at the end of July 2017.
He plans to shoot similar images in Australia next month, too.
Christian said: “I am mostly fascinated by the Southern Sky.
“The Milky Way is almost three-dimensional in dark places and the center of our Milky Way, the galactic center, rotates right to the zenith.
“By superimposing images the most beautiful patterns arise.”