M 3
Distance from Earth: About 34,000 light years
Located in: Canes Venatici
Telescope: 12.5" RCOS
Camera : STL11000 -- off axis guiding
Mount : AP1200
Image date: May 2023
-- Filters used and total time--
Luminous 30 minutes (2x2 binning)
Red 30 minutes (2x2 binning)
Green 30 minutes (2x2 binning)
Blue 30 minutes (2x2 binning)
Ha
OIII
SII