M12
M12
M12 (NGC 6218) is a Shapley-Sawyer class IX (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 15,700 light-years away in Ophiuchus.
Luminance – 17x300s – 85 minutes – binned 2x2
RGB – 18:15:21x300s – 90:75:105 minutes each – binned 2x2
335 minutes total exposure – 5 hours 35 minutes
Imaged May 15th, 16th and 17th, 2023 at the El Sauce Observatory (Rio Hurtado, Chile) with a QHY 600M on a PlaneWave CDK24 at f/6.5 3974 mm.
LRGB - https://www.flickr.com/photos/dcrowson/52907442394/sizes/l/
These are Telescope Live (https://telescope.live/) “One-Click Observation.”
Luminance – 17x300s – 85 minutes – binned 2x2
RGB – 18:15:21x300s – 90:75:105 minutes each – binned 2x2
335 minutes total exposure – 5 hours 35 minutes
Imaged May 15th, 16th and 17th, 2023 at the El Sauce Observatory (Rio Hurtado, Chile) with a QHY 600M on a PlaneWave CDK24 at f/6.5 3974 mm.
LRGB - https://www.flickr.com/photos/dcrowson/52907442394/sizes/l/
These are Telescope Live (https://telescope.live/) “One-Click Observation.”
SPECIFICATIONS
Telescope
PlaneWave CDK24 at f/6.5 3974 mm - CHI-1
Camera
QHY 600M
Location
El Sauce Observatory (Rio Hurtado, Chile)
Date of observation
2023-05-15,16,17
Filters
LRGB
Processing
Adobe PhotoShop CS5
Credits
Dan Crowson / Telescope.Live
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