M20 Trifid Nebula (RGB) - 30 May 2020 (Geof Lewis)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: B85 · M 20 · NGC 6514 · Trifid Nebula

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M20 Trifid Nebula (RGB) - 30 May 2020

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M20 Trifid Nebula (RGB) - 30 May 2020

This target is really too big for the FOV of my C14 even with the x0.63 Optec telecompressor in train, but I only have a couple of previous versions of this target so wanted to try it again. Like all these southern lollipops, it is very low from my 52N location, but it is a beautiful target, so I had to give it another try. Unfortunately, the data was mostly captured in a brightening pre-dawn sky during astro twilight, so contrast was very poor.

NB I captured about 30 mins of luminance, but it was too poor to use, as despite several attempts it just made the RGB worse when I included it.

Original
C
Final
D

C

Description: Selective Colour in PS to boost Red, Topaz Denoise PS plugin (with TDN inverted mask on bright stars)

Uploaded: ...

D

Title: Reprocessed using PixInsight.

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	3592659
PixInsight job	5IXANLT9YW8P2EZKNIA8NUTVK4PRC4W7
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	18h02m33s.422
RA (top/left)	18h03m09s.800
RA (top/right)	18h03m10s.716
RA (bottom/right)	18h01m57s.874
RA (bottom/left)	18h01m55s.937

Dec (center)	-22°58′06″.43
Dec (top/left)	-23°09′45″.73
Dec (top/right)	-22°46′44″.81
Dec (bottom/right)	-22°46′24″.98
Dec (bottom/left)	-23°09′27″.22

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M20 Trifid Nebula (RGB) - 30 May 2020

M20 Trifid Nebula (RGB) - 30 May 2020

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M20 Trifid Nebula (RGB) - 30 May 2020

M20 Trifid Nebula (RGB) - 30 May 2020

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