Celestial hemisphere:  Northern  ·  Constellation: Vulpecula (Vul)  ·  Contains:  Dumbbell Nebula  ·  M 27  ·  NGC 6853  ·  PGC 2815773  ·  PK060-03.1
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M27, lowenthalm
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M27

Acquisition type: Lucky imaging
Getting plate-solving status, please wait...
M27, lowenthalm
Powered byPixInsight

M27

Acquisition type: Lucky imaging

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Description

The moon was approaching first quarter, so I thought I would try imaging with a visual UHC filter that has a fairly narrow band pass and very high transmissivity of the OIII and H-beta lines and also a high transmissivity form 645 to 700nm passing the red NII, SII and H-alpha lines. Passing the red-wavelengths for UHC filter intended for visual observing seems odd and a bit unusual, but makes for a great poor mans tri-band filter!

Pretty happy with the detail. The exposure isn't long enough to show the outer regions of the nebula much, but considering light pollution+moon light+some sky haze (which I noticed earlier in the day), I wasn't too worried about trying to trying to capture that. It still shows up some though. Additional sub exposures really weren't an option though, as my house got in the way! Moon will put an end to more exposures the next few nights, so treat this image as a final version.

On account of the star filter, I did nothing to retain star colors during processing and I let most of the stars go to roughly white and pinkish red. A couple of the brighter stars at the outer edge of the field got offset halos from reflections from the UHC filter. However, I decided to leave these as is, not wanting to over-process things.

Each 6 minute sub was 360 one second subs live-stacked in SharpCap.

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M27, lowenthalm