A close-up look inside of M17 the Swan/Omega Nebula… also known as the Check-mark Nebula, Lobster Nebula, and the Horseshoe Nebula.(so many common names for one object)

M17 The Swan or Omega Nebula Complex in Sagittarius

The Omega Nebula, also known as the Swan Nebula, is an HII region (star formation region) in the constellation Sagittarius.

5,000 to 6,000 light-years away, and spans about 22 light years across.

You can see lots of dust and gas in my close-up shot as well as some Bok globules.

This nebula is a bright one, shining at Magnitude 6, barely visible to the unaided eye from a dark location, but looks great in binoculars or a small telescope.


C-11 SCT Telescope at F10, Bisque MYT mount, ZWO 294MC Cooled Cmos Camera, L-Enhance filter,

“Short Exposure Imaging” Method, 60 x 20 second subs, 20 minutes total integration time., unfortunately the target went behind my neighbor’s trees, so only got 20 minutes worth of data from my backyard observatory in Dayton, Ohio on 08-01-2022.

Calibrated & stacked in Deep Sky Stacker, Pixinsight,  & Adobe Raw CC 2022.

Best Regards,

John Chumack