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Contains:  18 Vul, 19 Vul, 20 Vul, NGC 6882, NGC 6885, NGC6882, NGC6885, PK065-03.1, The star 18Vul, The star 19Vul, The star 20Vul
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NGC 6882 and NGC 6885 - Open Clusters, 


            Jonathan W MacCollum
Powered byPixInsight

NGC 6882 and NGC 6885 - Open Clusters

Technical card

Imaging telescopes or lenses:Orion 203/1000 f/4.9

Imaging cameras:ZWO ASI071MC Pro

Mounts:Celestron CGEM

Guiding telescopes or lenses:ZWO OAG

Guiding cameras:ZWO ASI 178MM

Software:PixInsight PinInsight 1.8.5Isbeorn N.I.N.A.StarNet++ Starnet ++PHD 2

Filters:Hutech IDAS LPS D1 2"

Accessory:Skywatcher 2" Coma Corrector f/4

Dates:July 14, 2019

Frames: 109x30"

Integration: 0.9 hours

Avg. Moon age: 12.49 days

Avg. Moon phase: 94.26% job: 2802809

RA center: 20h 11' 44"

DEC center: +26° 40' 38"

Pixel scale: 0.983 arcsec/pixel

Orientation: -3.176 degrees

Field radius: 0.811 degrees

Resolution: 4944x3284

Data source: Backyard


Spent some time bouncing around a few summer-time open clusters on the only clear night available to me last week.

Enjoy, and feel free to share your thoughts and criticism. I never want to stop learning and improving!

Acquisition and Pre-Processing:
* Best 109 (of 150 total) x30s Lights weighted using the following subframe expression:
+ 15*(1-(Eccentricity-EccentricityMin)/(EccentricityMax-EccentricityMin))
+ 25*(SNRWeight-SNRWeightMin)/(SNRWeightMax-SNRWeightMin))
+ 50
* Stacked with Linear Fit Clipping and CFA Drizzle 1x with 0.7 drop shrink

Color Calibration:
* DBE -> Background Neutralization -> Color Calibration -> Photometric Color Calibration
* Assign RGB Working space to 1,1,1

RGB Processing:
* TGV with a low contrast mask and strong edge protection
* MMT noise reduction with a high protective luminance mask
* HSV Repaired Separation Script
* Arcsinh Stretch to non-linear

Luminance Processing:
* Extract Synthetic Luminance
* Masked Stretch and Curves

Final Touches:
* LRGB Combination of L with RGB
* Chrominance noise reduction on the brighter stars to eliminate grid-like structures



Jonathan W MacCollum
License: None (All rights reserved)

Sky plot

Sky plot


NGC 6882 and NGC 6885 - Open Clusters, 


            Jonathan W MacCollum

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