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Contains:  M 27, Dumbbell nebula, NGC 6853, The star 14Vul
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The Dumbell Nebula - M27 - RGB, 


            Thomas Richter
The Dumbell Nebula - M27 - RGB

The Dumbell Nebula - M27 - RGB

Technical card

Resolution: 2951x2050

Dates:Aug. 26, 2017

Baader B 1.25'' CCD Filter: 12x300" -20C bin 1x1
Baader G 1.25'' CCD Filter: 12x300" -20C bin 1x1
Baader R 1.25'' CCD Filter: 9x300" -20C bin 1x1

Integration: 2.8 hours

Darks: ~35

Flats: ~21

Bias: ~100

Avg. Moon age: 4.79 days

Avg. Moon phase: 23.79%

Temperature: 16.00 job: 1705541

RA center: 299.907 degrees

DEC center: 22.709 degrees

Pixel scale: 1.219 arcsec/pixel

Orientation: 88.456 degrees

Field radius: 0.608 degrees

Locations: Kreben, Kreben(Wilhermsdorf), Bayern, Germany


Unfortunately the transparency was not good this night. Again and again clouds passed through. Technical problems I had also. The telescope pushed against the tripod as it turned around. This changed the collimation. So sorry that the stars are not round.
Maybe you like it anyway.

Object description (

The Dumbbell Nebula (also known as Apple Core Nebula, Messier 27, M 27, or NGC 6853) is a planetary nebula in the constellation Vulpecula, at a distance of about 1,360 light-years.
This object was the first planetary nebula to be discovered; by Charles Messier in 1764. At its brightness of visual magnitude 7.5 and its diameter of about 8 arcminutes, it is easily visible in binoculars and a popular observing target in amateur telescopes.



Thomas Richter
License: None (All rights reserved)

Sky plot

Sky plot


The Dumbell Nebula - M27 - RGB, 


            Thomas Richter