Description: - A large
bright open cluster in Cassieopia.More sub exposures were
planned but the software was interrupted in the middle of the
acquisition sequence so only a few exposures were obtained.
Telescope: Astro-Physics AP92
telescope w 92FF giving 644mm focal length at f/7.
Camera: SBIG STT-8300M @ -35C
Exposure: 4 Red, 4 Green and 3
Blue sub exposures of 7.5 min each for 83 minutes total through
Baader RGB filters
Date: 2023-09-15 at 7C and
Location: RASC Calgary's
Wilson Coulee Obaervatory field, Alberta under Bortle 5 skies
Processed in PixInsight with
NoiseXT and BlurXT, then finished in Adobe Photoshop.