Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Cocoon nebula  ·  IC 5146
Cocoon Nebula, 


            Dennis Moeller
Cocoon Nebula
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Cocoon Nebula

Technical card

Imaging telescopes or lenses: Sublambda Engineering SL HypA 16" f:3,5

Imaging cameras: Sony NEX-5N mod

Mounts: EQ 8

Guiding telescopes or lenses: Sublambda Engineering SL HypA 16" f:3,5

Guiding cameras: Lacerta MGEN 2

Software: Pixinsight 1.8

Filters: Astronomik IR-Block

Dates:July 12, 2018

Frames:Astronomik IR-Block: 65x30" ISO1600 14C bin 1x1

Integration: 0.5 hours

Flats: ~5

Avg. Moon age: 28.80 days

Avg. Moon phase: 0.60%

Bortle Dark-Sky Scale: 4.00

Mean FWHM: 3.00

Temperature: 14.00

Basic astrometry details

Astrometry.net job: 2157359

RA center: 21h 53' 30"

DEC center: +47° 15' 57"

Pixel scale: 0.684 arcsec/pixel

Orientation: 2.015 degrees

Field radius: 0.518 degrees

Resolution: 1824x1210

Locations: Hohe Wand, Stollhof, Austria

Data source: Traveller


Windy conditions forced me to reduce the sub's exposure time to 30 seconds. And even with this approach every second pic has to be discarded as the stars were distorted by wind gusts. Huge amount of data but in the end underexposed.


Sky plot

Sky plot


Cocoon Nebula, 


            Dennis Moeller