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Contains:  M 27, Dumbbell nebula, NGC 6853
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M27 Dumbbell Nebula in BiColor Ha & OIII, 


            Douglas J Struble
M27 Dumbbell Nebula in BiColor Ha & OIII

M27 Dumbbell Nebula in BiColor Ha & OIII

Technical card

Resolution: 2795x2236

Dates:Aug. 2, 2017

Astrodon Ha 5nm: 24x120" (gain: 139.00) -20C bin 1x1
Astrodon OIII 3nm: 22x120" (gain: 139.00) -20C bin 1x1

Integration: 1.5 hours

Darks: ~50

Flats: ~50

Bias: ~250

Avg. Moon age: 9.95 days

Avg. Moon phase: 76.01%

Bortle Dark-Sky Scale: 6.00 job: 1872196

RA center: 299.891 degrees

DEC center: 22.719 degrees

Pixel scale: 0.648 arcsec/pixel

Orientation: 121.172 degrees

Field radius: 0.322 degrees

Locations: Backyard Red Zone Observatory, Taylor, MI, Michigan, United States

Data source: Backyard


I produced a traditional hubble palette version of this back in August of this year. I wanted to try a bicolor Ha and OIII processing in an effort to produce a more natural look.

The first hint of what will become of our Sun was discovered inadvertently in 1764. At that time, Charles Messier was compiling a list of diffuse objects not to be confused with comets. The 27th object on Messier's list, now known as M27 or the Dumbbell Nebula, is a planetary nebula, the type of nebula our Sun will produce when nuclear fusion stops in its core. M27 is one of the brightest planetary nebulae in the sky, and can be seen toward the constellation of the Fox (Vulpecula) with binoculars. It takes light about 1000 years to reach us from M27, shown above in colors emitted by hydrogen and oxygen. Understanding the physics and significance of M27 was well beyond 18th century science. Even today, many things remain mysterious about bipolar planetary nebula like M27, including the physical mechanism that expels a low-mass star's gaseous outer-envelope, leaving an X-ray hot white dwarf.



Douglas J Struble
License: None (All rights reserved)

Sky plot

Sky plot


M27 Dumbbell Nebula in BiColor Ha & OIII, 


            Douglas J Struble