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 composities 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

Deep Sky photographs

STARSCAPE

Starscape photographs

SOLAR SYSTEM

Solar system photographs