Chicago · Bortle 9 · Rooftop
Deep sky astrophotography from one rooftop in Chicago, under some of the most light-polluted skies on earth. Every frame here was shot from that same roof, straight through the city glow.
ATLAS
ATLAS calculates a real-time imaging score for every object based on altitude, moon phase, light pollution, and your gear, then renders the entire sky as an interactive 3D dome. One number tells you what's worth shooting tonight.
The Mission
I'm Brett Horin, a hobbyist astrophotographer shooting deep sky objects from my Chicago rooftop — a Bortle 9 sky above one of America's most light-polluted cities. Everything here was captured from that one roof, in the middle of the city.
My work is built on one idea: you can do serious deep sky imaging without leaving the city.
