Globular Cluster
Messier 55
Alluna RC16, AFFC
SBIG STX16803 FW7 + external guider. AstroDon LRGB 15:30:30:30 minutes
Processing in MaxImDL, Pixinsight and Photoshop CC 2019
Images copyright P & L Ward 2019 all rights reserved
Can you see all 26 grey scales above?