Perseids At Dinosaur Park
Taken by Alan Dyer on August 12, 2017 @ Dinosaur Prov. Park, Alberta
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Exposure Time: 15/1
Aperture: f/2.2
ISO: 3200
Date Taken: 2017:08:13 15:14:02
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Here is a composite of the Perseid meteors over Dinosaur Provincial Park, Alberta on the night of August 12/13, 2017. A faint aurora is on the northern horizon at left. The meteors are accumulated over 3 hours of time –– recording 14 meteors extracted from a total of 645 images.

One meteor obligingly appeared at centre that was particularly bright and left a long-lasting “smoke” train.

This is a composite of a single image for the ground and sky taken as the start of the sequence, layered with 14 other images of meteors taken over 3 hours, masked to reveal just the meteor.

The camera was on a Sky-Watcher Star Adventurer Mini tracking device to follow the sky, so the stars in each frame remained in alignment throughout the 3 hours of shooting. So the meteors are in their accurate places in the sky relative to the background sky, retaining the effect of the radiant point in Perseus at centre.

However, the composite is a bit of a cheat in that the waning Moon rose about 30 minutes after the sequence of 645 frames started, brighening the sky a lot. So most of the meteor images had to be colour adjusted to make them blend into the “start-of-the-night” dark sky background well. The shower was not so active that this many meteors were visible during the brief hour or so of dark sky this night before moonrise. So the image is not a realistic depiction of the night, but serves as an illustration of the shower radiant over a scenic landscape with the aurora a bonus.

Each image was 15 seconds at f/2.2 with the Sigma 20mm Art lens and Nikon D750 at ISO 3200.
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Nice work, Alan. Saw some good ones here in Maine between 10-11 but missed them with my camera. Will try again tonight after learning a bit from last nights attempt. Counting on you for great eclipse pics!
Posted by Churchill69 2017-08-14 14:21:26
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