Barnard 252 (LDN 1698, DOBASHI 7265 and others) is a large dark nebula located in Scorpius.
Luminance – 18x600s – 180 minutes – binned 1x1
RGB – 16x600s – 160 minutes each – binned 1x1
660 minutes total exposure – 11 hours
Imaged over 17 days from March to September, 2021 at the El Sauce Observatory (Rio Hurtado, Chile) with a FLI PL 9000 on a PlaneWave CDK24 at f/6.5 3974 mm.
This is a Telescope Live (https://telescope.live/) “One-Click Observation.” These are automated data collection sessions that run when the scopes are otherwise not in use. Create a free trial account to download some of this data. Use my referral promo code SUFM5 when you sign up to receive 20% off if you continue after the trial.
LRGB - https://www.flickr.c...514666/sizes/l/
See the link above because the attached image has been down-sampled.