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Community photo entitled Keyhole Star Trails by Alan Howell on 08/10/2025 at Greensboro, NC

Keyhole Star Trails

On 08/10/2025 02:00 am by Alan Howell | Website | Greensboro, NC

Locally it's been a tough year for the Perseids. I haven't seen a single meteor so far as the full moon is washing out the meteor shower going on now. So I decided to do some star trails through the trees as a secondary image.

Taken with a DSLR camera and 35mm lens at f/1.4...

This is facing WSW and the rotation of the Earth drops the stars to the Western horizon, just like the setting Sun. This was 275 images taken at 20 seconds each for a total of 1 hr. and 32 minutes.

If you zoom in you can see each exposure length as it leave a little gap in each star trail as my camera pauses for 3 seconds before starting the next exposure.

Canon 77D, Rokinon 36mm f/1.4, intervalometer, tripod.

Processed in Photoshop