Photographer Lincoln Harrison captures jaw-dropping photographs of star trails. Shooting from the Australian outback, he spends up to 15 hours creating each image of the night sky. Shooting with a Nikon D7000, Nikon D3100, and a wide assortment of lenses, Harrison captures a large number of exposures of the foreground and stars separately. He then combines the images (sometimes hundreds of them) into amazing photographs showing the sky dominated by colorful star trails.
You can find more of his star trail photos in this Flickr set.
Image credits: Photographs by Lincoln Harrison and used with permission