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.
Object Designations: M27, Messier 27, NGC4258
Also known as: Dumbell Nebula, Apple Core Nebula
Constellation: Vulpecula
Object Type: planetary nebula
Distance: 1360 light-years away
Magnitude: 7.4
Discovery: Pierre MĂ©chain
Telescope: Celestron 9.25 SCT with Starzona .63 corrector; 1500 mm / f7
Camera: ZWO ASI2600 MC Pro – Antlia RGB Ultra filter
Mount: Celestron CGEMII – With CPWI Software
Guiding: Celestron StarSense Autoguider
SharpCap Imaging Software
Processing Software:
AstroSharp Ltd SharpCap
Pleiades Astrophoto PixInsight
GraXpert
Russell Croman Astrophotography BlurXTerminator
Russell Croman Astrophotography NoiseXTerminator
Russell Croman Astrophotography StarXTerminator
Various scripts
This final image is:
116 – 120 second subs at 100 gain, Antlia RGB Ultra filter
White Bal (B) = 57
White Bal (R )= 76
Brightness = 12
Camera Temperature = -10
LastPlateSolveData=Plate solve result was RA=20:00:58.5,Dec=+22:47:17 with mount at RA=20:00:57.7,Dec=+22:47:53, FOV 0.895×0.598 degrees, up is 270.23 degrees East of North
