Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  IC 1340  ·  NGC 6960  ·  NGC 6979  ·  NGC 6992  ·  NGC 6995  ·  The star 52 Cyg  ·  Veil Nebula
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The Cygnus Veil in Hα/Oiii+RGB (2-panel Mosaic), 



    
        

            Brent Newton
The Cygnus Veil in Hα/Oiii+RGB (2-panel Mosaic), 



    
        

            Brent Newton

The Cygnus Veil in Hα/Oiii+RGB (2-panel Mosaic)

Getting plate-solving status, please wait...
The Cygnus Veil in Hα/Oiii+RGB (2-panel Mosaic), 



    
        

            Brent Newton
The Cygnus Veil in Hα/Oiii+RGB (2-panel Mosaic), 



    
        

            Brent Newton

The Cygnus Veil in Hα/Oiii+RGB (2-panel Mosaic)

Acquisition details

Dates:
June 21, 2019 ·  June 24, 2019 ·  June 27, 2019 ·  June 28, 2019 ·  June 30, 2019 ·  July 22, 2019 ·  July 23, 2019 ·  Aug. 27, 2019 ·  Aug. 28, 2019 ·  Oct. 16, 2019 ·  Oct. 19, 2019 ·  Oct. 21, 2019 ·  Oct. 28, 2019 ·  Oct. 30, 2019
Frames:
ZWO Blue 36 mm: 119×120(3h 58′) (gain: 76.00) -15°C bin 1×1
ZWO Green 36 mm: 119×120(3h 58′) (gain: 76.00) -15°C bin 1×1
ZWO H-alpha 7nm 36mm: 177×300(14h 45′) (gain: 139.00) -10°C bin 1×1
ZWO H-alpha 7nm 36mm: 114×300(9h 30′) (gain: 139.00) -20°C bin 1×1
ZWO O-III 7nm 36mm: 208×300(17h 20′) (gain: 139.00) -10°C bin 1×1
ZWO O-III 7nm 36mm: 21×300(1h 45′) (gain: 139.00) -20°C bin 1×1
ZWO Red 36 mm: 119×120(3h 58′) (gain: 76.00) -15°C bin 1×1
Integration:
55h 14′
Darks:
100
Flats:
40
Avg. Moon age:
19.46 days
Avg. Moon phase:
41.40%
Bortle Dark-Sky Scale:
4.00

Basic astrometry details

Astrometry.net job: 6555802

RA center: 20h51m25s.9

DEC center: +30°5616

Pixel scale: 2.473 arcsec/pixel

Orientation: 220.156 degrees

Field radius: 2.199 degrees

Resolution: 5000x4000

File size: 13.3 MB

Locations: General Area, Wichita, Kansas, United States

Data source: Backyard

Description

Note this is a 2-panel mosaic, so about 27.5 hours per panel, or a combined 16 hours of Luminance (Hα/Oiii) each per panel.

I'm a year late on this data set and it is definitely not the only one given how slow I am at processing my data. I started this project in July of 2019 and just never got around to finishing it until now. This is a 2-panel mosaic of the Veil using Hα/Oiii-boosted RGB, though given the boost given by the Oiii channel to the B channel it could be considered a bicolor with RGB stars.

________________________

2022 Reprocess: took more time with color and with more experience (and better software tools) was able to isolate a lot more contrast than in 2019

Pre-Processing & Mosaicing:
 - Darks, Flats Calibration, Cosmic Correction
 - Subframe Selector Weights, Star Align, Local Normilization
 - Drizzle Integration
 - Gradient Merge Mosaic following Rough Alignment using StarAlign

Housekeeping:
 - Crop
 - DBE
 - LFit R, B to G
 - RGB Combine

Narrowband Processing:
 - Decon on H, O
 - StarNet on H, O
 - Rista TGVD, MMT
 - Blended starless Oiii onto Hα, forming Master Luminance image

 - GHS + HT stretch
 - StarNet to form Starless L copy

Color Processing:
 - PCC
 - Rista TGVD, MMT
 - Isolation and combination of starless narrowband images
 - PixelMath to form HOO, H/H+O/O images using starless data

 - GHS + HT stretches
 - LRGB Combination on all color images
 - Final NR with ACDNR, MMT
 - 50% downsize
 - Unsharp Mask
 - Color tweaks
 - Contrast tweaks
 - Annotation

Comments

Revisions

  • The Cygnus Veil in Hα/Oiii+RGB (2-panel Mosaic), 



    
        

            Brent Newton
    Original
  • Final
    The Cygnus Veil in Hα/Oiii+RGB (2-panel Mosaic), 



    
        

            Brent Newton
    D
  • The Cygnus Veil in Hα/Oiii+RGB (2-panel Mosaic), 



    
        

            Brent Newton
    E
  • The Cygnus Veil in Hα/Oiii+RGB (2-panel Mosaic), 



    
        

            Brent Newton
    F
  • The Cygnus Veil in Hα/Oiii+RGB (2-panel Mosaic), 



    
        

            Brent Newton
    G
  • The Cygnus Veil in Hα/Oiii+RGB (2-panel Mosaic), 



    
        

            Brent Newton
    H

D

Description: "True Color" Blend blending H to R/B and Oiii to G/B

Uploaded: ...

E

Description: H/O/O blend with RGB stars

Uploaded: ...

F

Description: R: H
G: (H+O)/2
B: O

Uploaded: ...

G

Description: Starless H/Oiii Luminance

Uploaded: ...

H

Description: Annotated

Uploaded: ...

Sky plot

Sky plot

Histogram

The Cygnus Veil in Hα/Oiii+RGB (2-panel Mosaic), 



    
        

            Brent Newton

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