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Contains:  NGC 6357, the War and Peace Nebula
Getting plate-solving status, please wait...
NGC6357 Lobster Nebula, 



    
        

            Chris Ryan
NGC6357 Lobster Nebula
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NGC6357 Lobster Nebula

Technical card


Dates:April 16, 2020May 1, 2020May 2, 2020May 15, 2020May 26, 2020June 2, 2020June 3, 2020

Frames:
Baader Ha 36 mm 7 nm: 149x300" (gain: 75.00) -15C bin 1x1
Baader OIII 36mm 7nm: 87x300" (gain: 75.00) -15C bin 1x1
Baader SII 36mm 7nm: 90x300" (gain: 75.00) -15C bin 1x1

Integration: 27.2 hours

Darks: ~20

Flats: ~10

Avg. Moon age: 12.95 days

Avg. Moon phase: 56.25%


Basic astrometry details

Astrometry.net job: 3585261

RA center: 17h 26' 3"

DEC center: -34° 13' 44"

Pixel scale: 0.937 arcsec/pixel

Orientation: 198.220 degrees

Field radius: 0.837 degrees


Resolution: 4846x4224

Locations: Home, Flaxton, QLD, Australia

Data source: Backyard

Description

Revision A: 3 nights of NB data. Not happy with the colour as yet, so a reprocess is likely. And I am planning to add more data to it as well.

Revision B is the Revision A with more/alternate processing. I do have more data to add, but I'm still trying to collect more to boost it even further.

Revision C: All nights of data, complete reprocess. Better framing of core part of the image.

Revision D: Reprocess to get better colours and their mix. Getting closer, but I suspect another reprocess sometime...

Revision E: Reduced the green influence overall, but not so far as using SCNR. There are a few areas of the nebula that benefit from the extra colour contrast.

Revision F: More adjustments to colours, etc. I suspect by the time I get to Revision Z I will be better... :)

Comments

Author

lazjen
Chris Ryan
License: Attribution-NonCommercial-ShareAlike Creative Commons
1010
Like

Revisions

  • NGC6357 Lobster Nebula, 



    
        

            Chris Ryan
    Original
  • NGC6357 Lobster Nebula, 



    
        

            Chris Ryan
    B
  • NGC6357 Lobster Nebula, 



    
        

            Chris Ryan
    C
  • NGC6357 Lobster Nebula, 



    
        

            Chris Ryan
    D
  • NGC6357 Lobster Nebula, 



    
        

            Chris Ryan
    E
  • Final
    NGC6357 Lobster Nebula, 



    
        

            Chris Ryan
    F

Sky plot

Sky plot

Histogram

NGC6357 Lobster Nebula, 



    
        

            Chris Ryan