NGC 7000 Cygnus Wall in SHO (Rick Veregin)

NGC 7000 Cygnus Wall in SHO

The Cygnus Wall, part of the North America Nebula (NGC 7000 or Caldwell 20), is an emission nebula consisting of interstellar cloud of mostly ionized hydrogen (Halpha) mixed with OII, SII and others, as well as dark regions of dense interstellar dust. The ridge of the Cygnus wall runs for about 20 light-years, and is about 1600 light years from us.

The imaging data is from the RASC Robotic Telescope, details below. My processing was in StarTools as an SHO to RGB image, where I tried to balance the colors, so that all three components were clearly visible. I also included a version with RGB stars, though I kept the stars muted as they very quickly overwhelm this image with this larger aperture.

The RASC Robotic Telescope

Date July 24, 2019

Narrowband exposure total=19.5 hrs; RGB exposure total =45 min

Narrowband (Ha, OIII, SII) (13,13,13) 1800 s each 1x1

Narrowband flats/darks/bias 5/16/16 per color

RGB for star colors exposure (5,5,5) 180 s each 1x1

RGB flats/darks/bias 5/16/16

Location Sierra Remote Observatories, Aubery, California

Telescope RCOS 16" f/8.9 (3550mm focal length)

Camera SBIG STX16803 16MP (4096 x 4096)

Mount Paramount ME

Filters SBIG LRGB, SBIG Ha (7nm), OIII (8.5nm), SII (8nm)

Original
B
Final
C

B

Description: NGC 7000 Cygnus Wall SHO with RGB Stars

Uploaded: ...

C

Description: Starless version, but I thought it looked better rotated 180 degrees? Anyone notice a difference?

Uploaded: ...

The Royal Astronomical Society of Canada Robotic Telescope
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Status	Basic failed
Started	...
Astrometry.net job	4685477
PixInsight job	n/a
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