Contains:M 27, Dumbbell nebula, NGC 6853
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Dumbbell Nebula - M27, 


        Chad Adrian
Dumbbell Nebula - M27

Dumbbell Nebula - M27

Technical card

Resolution: 4458x3370

Dates: Aug. 8, 2018

Astronomik Ha 6nm: 12x300" (gain: 139.00) -20C
Astronomik Lum 36mm: 90x30" (gain: 139.00) -20C
Astronomik O III 6nm 36mm: 16x300" (gain: 139.00) -20C
Astronomik S II 6nm 36mm: 16x300" (gain: 139.00) -20C

Integration: 4.4 hours

Darks: ~25

Flats: ~25

Flat darks: ~25

Avg. Moon age: 26.15 days

Avg. Moon phase: 12.39%

Bortle Dark-Sky Scale: 5.00 job: 2190393

RA center: 299.902 degrees

DEC center: 22.717 degrees

Pixel scale: 0.374 arcsec/pixel

Orientation: 86.249 degrees

Field radius: 0.290 degrees

Locations: Backyard, Platteville, WI, United States

Data source: Backyard


This is my first image with my SCT. Going forward I plan to autofocus with the filter I'm using, instead of always focusing with Lum. I think I will get less elongation this way.



Chad Adrian
License: None (All rights reserved)

Sky plot

Sky plot


Dumbbell Nebula - M27, 


        Chad Adrian

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