Globular cluster M12

M12 (NGC 6218) is another globular cluster in Ophiuchus, situated just west of M10 in the sky.

 

Shot with LRGB filters from my backyard in Long Beach, CA.

L: 18 15 s exposures

R: 17 30 s exposures

G: 26 30 s exposures

B: 21 30 s exposures

 

All taken with an Atik 414-EX mono camera on a Celestron Edge HD 925 at a focal length of 1530 mm. LRGB filters are from Optolong.

 

Pre-processing in Nebulosity; registration, stacking, channel combination, and processing in PixInsight; final touches in Photoshop.

Done