IC 5146 in Cygnus, the Cocoon Nebula

IC 5146, the Cocoon Nebula in Cygnus.

Barnard 168 is the dark nebula inside the right edge of the Cocoon Nebula.

The large dark nebula just right of center is part of LDN 1035.

Hover over the picture for an annotated version

Date:  16 and 20 September and 12 October 2023

FOV:  approximately 2° 33' × 1° 42'

Telescope:  Stellarvue SVX102T + SFFR.74 reducer (523mm f/5.25)

Guiding:  ZWO ASI120MM mini mono guide camera,

Stellarvue F050G 50mm guide scope

Computer:  ASIair pro Raspberry Pi

Mount:  iOptron CEM40

Camera:  ZWO ASI071MC Pro Cooled (-10°C) Color CMOS with gain 240

Pixel size:  4.78 μm

Resolution:  1.886 arcsec/pixel

Frames:16 Sept 2336 × 240 seconds,

20 Sept 2396 × 240 seconds,

12 Oct 2346 × 240 seconds

Filter:  Optolong L-eNhance narrow dual band filter

Stacking:  One hundred seventy-eight 240 second frames using Pixinsight

Calibration frames:  20 dark, 20 flat, 20 dark flats for each session

Total Time:  11 hours 52 minutes

Processing:  Pixinsight – SPCC, DBE, SPCC, BlurXT, NoiseXT, GHS, HST, MaskStr,

PMath add, HDRMST7, Sat, Scale

Location:  Darling Hill Observatory near Vesper, NY (16 and 20 Sept 23)

and Stony Creek Boat Launch near Henderson, NY (12 Oct 23)