M20 S2HaO3Hb 5-12Aug2021

M20 or NGC 6514 is a popular and bright nebula about 4300 light years away in the constellation Sagittarius.

This image was taken during the same nights as during the "experiment image" posted a few days ago. Another way of combining the narrowband data from the latest M20 exposures. Sulfur II data, SII as Red, H-Alpha as Green and OIII as Blue than added the H-beta signal to Blue to see what it'll look like.

Imaged through a 8" SCT at f6.3 using a QHY268M camera, for a total exposure time of 15 hours and 20 minutes.