Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)
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Dark Nebulae in Cygnus - LDN 935, 



    
        

            rhedden
Dark Nebulae in Cygnus - LDN 935
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Dark Nebulae in Cygnus - LDN 935

Technical card

Imaging telescopes or lenses: Edge HD 1100

Mounts: Software Bisque Paramount MX

Guiding telescopes or lenses: Edge HD 1100

Focal reducers: Celestron f/7 reducer for Edge 1100 HD

Software: ImagesPlus 6.5 MLUnsold Digital Imaging  ·  GIMP  ·  Deep Sky Stacker  ·  Fitswork 4  ·  Software Bisque The SkyX Professional  ·  Imagenomic LLC Noiseware

Filters: Orion Extra Narrowband Filter Ha 1.25"  ·  Astrodon 31mm LRGB E Series Gen 2 1.25"

Accessory: Innovations Foresight On-axis guider  ·  Starlight Xpress Lodestar X2


Dates:June 19, 2019June 23, 2019June 25, 2019

Frames:
Astrodon 31mm LRGB E Series Gen 2 1.25": 11x300" -16C bin 1x1
Orion Extra Narrowband Filter Ha 1.25": 31x540" -16C bin 1x1

Integration: 5.6 hours

Avg. Moon age: 19.83 days

Avg. Moon phase: 70.70%

Bortle Dark-Sky Scale: 3.00


Basic astrometry details

Astrometry.net job: 3636407

RA center: 20h 58' 9"

DEC center: +43° 21' 14"

Pixel scale: 0.465 arcsec/pixel

Orientation: 352.590 degrees

Field radius: 0.225 degrees


Resolution: 2721x2171

Locations: Washington County, North of Salem, New York, United States

Data source: Traveller

Description

This image shows a portion of LDN 935 in Cygnus. The bright nebulosity at the upper left is the tail end of the Cygnus Wall / North America Nebula. It might not be recognizable at first, because most images of this region show a wider field of view.

Of all the astrophotos I have taken, this is one of the spookier ones, with a dark, gremlin-like figure appearing on the right side.

The luminance channel for this image is 4.6 hours of H-alpha. The composite image is (H)RGB.

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