M10 RGB 26 May 2019 (Geof Lewis)

Celestial hemisphere: Southern · Constellation: Ophiuchus (Oph) · Contains: M 10 · NGC 6254

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M10 RGB 26 May 2019

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M10 RGB 26 May 2019

My intention had been to shoot close up views of globular clusters M4 and M19 with my C14, both of which live down around 10 degrees from my location. Whilst I was waiting for them to gain altitude I decide to shoot M10, for which I only had a poor quality image taken with a 4" APO in LP skies in Surrey. M10 itself was only at an altitude of ~25 degrees and I started capturing durring nautical twilight in a pretty bright sky, so far from ideal. I captured 10x120s each RGB, of which 8 of each were aligned and stacked giving 48 mins total integration.

NB I never did get M4 or M19, the latter I started, but had focus issues then lost it behind trees....

Original
B
C
D
Final
E

B

Description: A couple of iterations of levels to brighten the core

Uploaded: ...

C

Description: Levels adj and reduced saturation on red channel, to better align histograms

Uploaded: ...

D

Description: Complete rework using only ImagesPlus v6.5

Uploaded: ...

E

Title: Reprocessed using PixInsight and Affinity Photo

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	2719390
PixInsight job	CL2525GOLMXHAUYUG171OU97X88JMWPT
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	16h57m08s.707
RA (top/left)	16h57m55s.453
RA (top/right)	16h56m23s.965
RA (bottom/right)	16h56m21s.843
RA (bottom/left)	16h57m53s.436

Dec (center)	-04°05′51″.86
Dec (top/left)	-03°57′34″.69
Dec (top/right)	-03°56′52″.55
Dec (bottom/right)	-04°14′09″.11
Dec (bottom/left)	-04°14′51″.10

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M10 RGB 26 May 2019

M10 RGB 26 May 2019

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M10 RGB 26 May 2019

M10 RGB 26 May 2019

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D

E

Sky plot

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