This new version is 6 hours & 45 minutes with Optolong L-Enhance filter from bortle 5 sky.
Old version with Baader UV-IRcut filter and 4 hours & 3 minutes, same from bortle 5 sky.
The Dumbbell Nebula (also known as the Apple Core Nebula, Messier 27, and NGC 6853) is a planetary nebula (nebulosity surrounding a white dwarf) in the constellation Vulpecula, at a distance of about 1360 light-years. It was the first such nebula to be discovered, by Charles Messier in 1764. At its brightness of visual magnitude 7.5 and diameter of about 8 arcminutes, it is easily visible in binoculars and is a popular observing target in amateur telescopes.
Telescope : SW Esprit 100ED
Mount : Skywatcher EQ6-ri
Camera : ZWO 533 mc pro
Guiding :8x50 finder with QHY 5IIL
Filters: Total exposure time : 81x180 (4hours & 3min) with flat & flatdarks but without Darks .
Programs I have used : Nina 2.2 _ PixInsight 1.8.9-1
Location: Grammatiko, Attiki
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