Sometimes a parking lot will do. I took this in a hotel parking lot in Douglas, Michigan on a weekend trip out of the city. This shot was my first star trail with my 50mm prime lens, which can go down to f1.8, letting more light in. I loved the deep star trails etched by this higher focal length lens. Ultimately, the focal length proves to be somewhat limiting for most star trails as it’s to narrow on my DX crop sensor to adequately capture background. I might try it again when I upgrade to a full frame camera in the future.