Cocoon Nebula, Exmoor, 2020
IC 5146
Interstellar dust clouds and the cosmic cocoon, located 3,300 light years away where a newly developed cluster of stars live inside it. As photographed under the pristine dark skies of Exmoor, Brayford a clear night of September 2020.
Tech Card
Date / Location
17th September 2020, Brayford, North Devon near Exmoor, GMT+0, United Kingdom, TEMP: 16C, Bortle Class 3 ~SGM: 21.73 mag./arc sec2
Equipment
Camera: Nikon D810A
Imaging Telescope: Takahashi FSQ-85ED
Correcting Lens: Takahashi Reducer-QE 0.73x (composite focal length at 328mm and focal ratio at f/3.8)
Mount: iOptron CEM25EC
Image Quality
14 bit RAW (NEF)
Exposure time per image / number of composites and sensitivity
ISO 3200, 24 x 180" subs
Total Integration Time
1hr 12mins
Calibration Frames
25 Darks, 50 Bias, 25 Flats
Software
PixInsight 1.8.5 Core
Lightroom
Photoshop
DEEP SKY
STARSCAPE
SOLAR SYSTEM
EVENTS
