Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  M 20  ·  M 21  ·  NGC 6514  ·  NGC 6531  ·  Trifid nebula
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016 M20 Trifid Nebula 2016, John Schnupp
016 M20 Trifid Nebula 2016
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016 M20 Trifid Nebula 2016

Getting plate-solving status, please wait...
016 M20 Trifid Nebula 2016, John Schnupp
016 M20 Trifid Nebula 2016
Powered byPixInsight

016 M20 Trifid Nebula 2016

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Description

I had imaged this the previous week but over overexposed and had way too much noise. The following week the conditions were equally as good but I opted for more images with a shorter exposure. This really helped my initial noise levels and the larger stack gave me a better starting SNR. I do not have a flattener, used only the WO 2" photo adapter. There was quite a bit of coma in the corners of the raw data that was cropped out. There is still a little bit remaining in the upper right but I wanted to include some of the stars from the M21 cluster. Some of the star colors seem a bit intense, probably won't change that in this image but it's something to watch on the next image I process.

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016 M20 Trifid Nebula 2016, John Schnupp