M8 + M20 + M21 + NGC 6559

Posted by dcrowson
on Monday, May 30, 2022
This 3.27 x 2.40 degree view of several Sagittarius favorites was captured over four years consisting of eight nights at the Danville Conservation Area. Each of the four panels consists of:

Luminance – 12x600s – 120 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2

240 minutes total exposure per panel – 4 hours

960 minutes total exposure – 16 hours

Imaged July 10th, 2018 through May 26th, 2022 at the Danville Conservation Area (New Florence, Missouri) with a SBIG ST-8300M on an Astro-Tech AT90EDT at f/6.7 603mm.

LRGB - https://www.flickr.com/photos/dcrowson/52110764393/sizes/l/

PLEASE SEE the link above because the image here has been heavily down-sampled.
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