M27 - Dumbbell Nebula

M27, also known as The Dumbbell Nebula 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 : T120 (www.obs-hp.fr/guide/t120.shtml)

Camera : Andor iKon-L 936 (www.obs-hp.fr/guide/camera-120/camera-120.shtml)

Filters : UBVRI Filter Set (www.obs-hp.fr/guide/camera-120/ubvri.shtml)

 

Acquisition :

Lights : Ha+RGB, total ~15min

Darks : no darks

Flats : 25 flats for each color

Bias : 25

 

Software :

Pre-processing : DeepSkyStacker

Processing : Siril, Pixinsight

Post-processing : Lightroom, Photoshop

Done