Sunset colours at the Green Cape Lighthouse, in southern New South Wales, Australia. The working lighthouse beacon is the structure at right, replacing the classic 1880s tower at left, with its unique square to octagon to circular shape. This is a single frame from a 780-frame time-lapse sequence.
Mercury (left) and Venus (right and bright) shinng low in the evening twilight, on March 19, 2017. Mercury was then 2 weeks before greatest elongation while Venus was a week before inferior conjunction. So Mercury was rising into the evening sky while Venus was rapidly descending. This is a 7-image HDR stack of exposures from 2.5 seconds to 1.6-second at ISO 200 with the Canon 6D and with the Sigma 50mm lens at f/4.