M57 Ring Nebula
Distance from Earth: About 2000 light years
Located in Lyra
Telescope: RCOS 12.5"
Camera : STF-8300 SC-2 guided
Mount : AP1200
Image date: June 2022
-- Filters used and total time--
Luminous
Red 30 minutes
Green 30 minutes
Blue 30 minutes
Ha
OIII
SII