Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Checkmark Nebula  ·  HD166996  ·  HD167140  ·  HD167141  ·  HD167166  ·  HD167281  ·  HD167283  ·  HD167332  ·  HD167333  ·  HD167396  ·  HD167431  ·  HD167452  ·  HD167545  ·  HD167546  ·  HD167593  ·  HD167632  ·  HD167633  ·  HD167655  ·  HD167656  ·  HD167657  ·  HD167697  ·  HD167719  ·  HD167743  ·  HD167744  ·  HD167745  ·  HD167769  ·  HD167791  ·  HD167792  ·  HD167812  ·  HD167838  ·  And 143 more.
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Omega nebula, Duane Melvin
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Omega nebula

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Omega nebula, Duane Melvin
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Omega nebula

Equipment

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Acquisition details

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Description

11 subs 540S each     gain = 100
Bortle 2 sky

G26-16 bit 26MP APS-C color camera - filterless   
-15C sensor temperature    no darks
72mm skywatcher doublet

Polemaster NCP alignment

EQ6R PRO mount

Pixinsight - Star xterminator - Starspikes4
PS
Lightroom

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Omega nebula, Duane Melvin