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Community photo entitled  by Scott thomson on 12/04/2021 at Keene, KY, USA

On 12/04/2021 04:02 am by Scott thomson| Keene, KY, USA

This is a collection of original JPG formatted images taken from 2:03 AM to 6:00 AM local time. I started out taking 1/80 second exposures, every 5 minutes until 3:12 AM when I took images every 150 seconds. Exposure times were increased for each interval to 8 seconds by 3:38. At that time exposures were taken every 75 seconds. @ 3:48 exposure time was increased to 13 seconds until 4:30 AM when exposure time was reduced to 10 seconds. Finally at 4:55 exposures returned to 1/60 of a second every 5 minutes and the scope left to autonomously complete images with the last unguided image shown at 6:00 AM.

Keene
Orion 90mm working at F/22 with a simple RA drive. Camera is a Canon Rebel T5i working at prime focus.

These images are un-processed originals.