M99 in Coma Berenices 25th March 2020 @ 23:47 UT
A lovely face on spiral with HD 107170 (mag 6.5). Showing dark clouds and bright star forming nodules.
Image: 15 seconds x 114 frames (1710 seconds total), gain 6579, bin 1x1, Raw 14, black level 99, camera temperature 7.3 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 99 is 42 million light years distant.
Charles Messier discovered M 99 in 1781.