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Dusk at McDonald Observatory
The domes of the 82" Otto Struve telescope (left) and the 107" telescope on Mt. Locke, McDonald Observatory. This is five frames stitched together by Autostitch and then cropped. It was shot near the end of astronomical twilight, Nov. 18, 2006.
Exposure info: 1/4 second each frame, F 3.5, ISO 1600
Camera: Pentax istDS DSLR standard digital zoom at about 18mm
Hand-held, on a monopod/walking stick
Dusk at McDonald Observatory
The domes of the 82" Otto Struve telescope (left) and the 107" telescope on Mt. Locke, McDonald Observatory. This is five frames stitched together by Autostitch and then cropped. It was shot near the end of astronomical twilight, Nov. 18, 2006.
Exposure info: 1/4 second each frame, F 3.5, ISO 1600
Camera: Pentax istDS DSLR standard digital zoom at about 18mm
Hand-held, on a monopod/walking stick