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Contains:  NGC 6723, The star βCrA, The star αCrA, The star γCrA, The star εCrA, Part of the constellation Corona Austrina (CrA)
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Corona Australis, 





    
        

            jorvacc
Corona Australis

Corona Australis

Technical card

Resolution: 5953x3986

Dates:Sept. 22, 2019

Frames: 7x240" ISO100

Integration: 0.5 hours

Flats: ~1

Avg. Moon age: 22.54 days

Avg. Moon phase: 45.83%

Astrometry.net job: 3000700

RA center: 19h 6' 48"

DEC center: -37° 30' 32"

Pixel scale: 4.973 arcsec/pixel

Orientation: 13.054 degrees

Field radius: 4.947

Locations: Laguna de Lobos, Salvador Maria, Provincia de Buenos Aires, Argentina

Data source: Traveller

Description

This is my first image here in AstroBin. It has been the first light of my new Red Cat 51. I have been doing astroimages with my old Nikon 80-200 f2.8 and Nikon 200mm f4 but I finally decided to stop fighting against CA and upgraded to my first APO!!
Even when I shot 33 240" light frames for this image, I only got 7 good enough to stack (the wind ruined all the rest) Anyway, I processed these 7 using the following workflow:

RawTherapee: RAW convertion, flat field correction and gradient correction.
DSS: Stacking
rnc-color-stretch: Stretching
GIMP: Levels adjustment
RawTherapee: Final cosmetic (small) changes.

The final result is quite noisy due to the small amount of light frames stacked! I hope to improve next time.

The second version has been made removing the stars using StarNet++ and stretching dust separately. Again unfortunately there is not enough data in the faint details, so they appear too noisy.

Comments

Author

jorvacc
jorvacc
License: None (All rights reserved)
1671
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Revisions

  • Corona Australis, 





    
        

            jorvacc
    Original
  • Final
    Corona Australis, 





    
        

            jorvacc
    B

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Corona Australis, 





    
        

            jorvacc

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Astrofotógrafos de Argentina