M 13 in Hercules 22nd April 2020 @ 00:13 UT
Big and bright, it really is full of stars. M13 is an impressive site.
Image: 15 seconds x 82 frames (1230 seconds total), gain 6579, bin 1x1, Raw 14, black level 99, camera temperature 13.6 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: M 13, 23,000 light years distance.
First catalogued by Charles Messier in 1764.