M27, a Dumbbell? (Wei-Hao Wang)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: Dumbbell Nebula · HD345449 · HD345452 · M 27 · NGC 6853 · PK060-03.1

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M27, a Dumbbell?

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M27, a Dumbbell?

Slightly less than a year ago, I posted this image of M27. It is one of the few earlier targets that I imaged during the commissioning phase of our new 50cm CDK. Later I added substantially more Ha and OIII exposures to capture the outer shell of the planetary nebula, but did not have time to really process the data. Finally I find some time to put all the data together.

This is an HaOIIIRGB composition. The faint outer shell comes from deep Ha and OIII images. The brighter part of the nebula contains both the narrow-band HaOIII data and the broad-band RGB data. Stars come from broad-band RGB data only.

The brighter core is the dumbbell. It no longer looks like a dumbbell once the outer shell is revealed. Maybe more like a butterfly or a moth.

The original version is a 100% crop. Ver.B is a 60% reduction of the full field.

Final
Original
B

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Status	Advanced success
Started	...
Astrometry.net job	7773808
PixInsight job	0P3KHGI9SJ9W6QOIT6EIHULORX65AN05
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h59m36s.473
RA (top/left)	20h00m11s.154
RA (top/right)	19h59m01s.890
RA (bottom/right)	19h59m01s.875
RA (bottom/left)	20h00m11s.781

Dec (center)	+22°43′05″.78
Dec (top/left)	+22°51′14″.71
Dec (top/right)	+22°51′05″.44
Dec (bottom/right)	+22°34′55″.95
Dec (bottom/left)	+22°35′05″.95

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M27, a Dumbbell?

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