M34 in Perseus 23rd March 2020 @ 20:47 UT
Not the most impressive star cluster for me. I had just looked at comet C/2017 T2 and so perhaps my heart wasn't in it.
Image: 15 seconds x 29 frames (435 seconds total), gain 6584, bin 2x2, Raw 14, black level 99, camera temperature 10.1 deg C, 1 dark. Stacked in SharpCap Pro 3.2.6248.0. The image was stacked and adjusted in SharpCap. The image was scaled down and cropped in GIMP.
Equipment: Celestron CPC-800 at F5.9, Alt-Az mount, Altair Astro Hypercam 294C Pro Cooled (fan), Celestron Focuser, CPWI controlled remotely via Microsoft RDP and ASCOM.
Astrometry: 1,600 light years distance, magnitude 5. Charles Messier came across M34 in 1764