The Dumbbell Nebula (Messier 27, NGC 6853) is a planetary nebula in the constellation Vulpecula, discovered by Charles Messier in 1764. It has a diameter of 8 x 5 arcminutes and a magnitude of 7.5. The central star has a magnitude of 14. Its distance is estimated at 1400 light-years. It was named by Sir William Herschel because of its elongated shape.

Shooting data:
Camera: ZWO ASI 1600 MMP
at -18°, Gain 76
Optics: 102 mm Fluorite Apo at f/7
Exposure:
Halpha 300 min, RGB 300 min
Total exposure time: 10 h
Corrections:
Bias, dark and flat frames
Image editing: PixInsight, Fitswork, Photoshop
Location: Münster

#astrophotography #messier #planetarynebula #dumbellnebula
Continuing to test the results of the using the Optolong Moon SkyGlow 2" Mounted Filter, decided to go relook at #M27 - #DumbellNebula. First set of images are using the filter from last night. Not a perfect comparison as the first set of images were a 23+ minutes observation with 20 second exposures, while the second set is at 27+ minutes observation with 10 second exposures. The latter seem a bit over exposed I feel. #seestar #S50 #space #astronomy #amateur