M27 in HOO with RGB stars with my little 100mm APO (Sven Hoffmann)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: Dumbbell nebula · M 27 · NGC 6853 · PK060-03.1

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M27 in HOO with RGB stars with my little 100mm APO

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M27 in HOO with RGB stars with my little 100mm APO

Hi everyone,

phew that was a tough one. M27 really has a lot of dynamic range and getting it all in a single type of exposure was a challenge. My goal for this image was to figure out whether I could image the faint halo of it with my little APO with enough patience and I can officially report success

This is also the first time I have replaced my narrowband stars with RGB ones. Something I plan to do more often from now on.

After doing extensive research into optimal exposures and a lot of math I figured out, that 10m exposures were way too long. I should have used ~3.4m for my total of 5 hours per channel. For 10m exposures to make sense I would have had to shoot a whooping 38h per channel. Well, that's something to know for next time

The refractors!
Cloudy Nights
ZWO ASI1600MM/QHY163M

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Status	Advanced success
Started	...
Astrometry.net job	2182901
PixInsight job	EIMXUZV04FIPLKBG9E5KDR1I36FHLNIN
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	19h59m36s.64
RA (top/left)	20h01m11s.78
RA (top/right)	20h00m01s.92
RA (bottom/right)	19h58m01s.15
RA (bottom/left)	19h59m11s.55

Dec (center)	+22°43′11″.4
Dec (top/left)	+22°30′22″.5
Dec (top/right)	+23°07′56″.8
Dec (bottom/right)	+22°55′57″.3
Dec (bottom/left)	+22°18′26″.5

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M27 in HOO with RGB stars with my little 100mm APO

M27 in HOO with RGB stars with my little 100mm APO

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M27 in HOO with RGB stars with my little 100mm APO

M27 in HOO with RGB stars with my little 100mm APO

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