An urban star trail! It is possible! This is a stack of 275 2-second exposures to create the star trails of Orion, the Moon, and the stars of winter
An urban star trail! It is possible! This is a stack of 275 2-second exposures to create the star trails of Orion, the Moon, and the stars of winter setting over the downtown core of Calgary on April 19, 2018. The sky was hazy, and of course there was city light pollution and moonlight, but the camera still picked up a good number of stars. The 275 exposures supply the sky and ground. A final image, taken 1 minute after the last star trail image, and blended with Lighten mode, adds the point-like stars at the end, to better define the constellations and make it clear these are stars. Orion is at centre; Sirius to the far left; and Venu setting to the far right. The crescent Moon is the bright streak. The Pleiades are above Venus. Taken from Tom Campbell Park with the location determined with The Photographer’s Emphemeris app to confirm Orion would be over the city core. The 275 frames were the first from 600 shot for a time-lapse, but in the later frames the stars of Orion set too low and get lost in the haze. During the shooting time, only one aircraft flew through, and I spot healed out its trail. All 2-second exposures with the 24mm Sigma lens at and Nikon D750 at ISO 400. Stacking the frames was with the Star Circle Academy Advanced Stacker Plus actions in Photoshop, with Ultrastreaks effect.
Size: 5400px × 3605px
Photo credit: © Alan Dyer / VWPics / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: actions, advanced, air, amazing, april, astro, astronomical, astronomy, calgary, city, cityscape, night, orion, photography, photos, setting, sirius, skies, sky, skyline, space, stacker, star, stars, streaks, trails, unique, universe, venus, winter
