Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Fireworks Galaxy  ·  NGC 6946
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NGC 6946 : The Fireworks Galaxy in Cygnus, Daniel.P
NGC 6946 : The Fireworks Galaxy in Cygnus, Daniel.P

NGC 6946 : The Fireworks Galaxy in Cygnus

Revision title: Re Processed in 2023

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NGC 6946 : The Fireworks Galaxy in Cygnus, Daniel.P
NGC 6946 : The Fireworks Galaxy in Cygnus, Daniel.P

NGC 6946 : The Fireworks Galaxy in Cygnus

Revision title: Re Processed in 2023

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Description

Re processing in 2023 of 2015 data only
The mouse over shows the original 2015 processing for comparioson

I deceided to add new data to some summer 2014 exposures ...
2014 : 25 x 600 s
2015 : 35x 900 s

FWHM : measured in Pixinsight : 2.3 arcsec (before deconvolution)
Limiting magnitude : 22.7 (with SNR=5)

Pre-processing done in Pixinsight :
- overscan area offset correction
- bias correction
- flat correction
- hot pixel correction
- debayer
- registration
- stack
Processing done in Pixinsight :
- backgroung color neutralisation
- color calibration using galaxy
- residual sky background substraction
- color saturation boost
- green neutral
- TGV denoise
- slight deconvolution
- non linear image creation
Final image :
- jpeg calibration done in Mac Photo

Comments

Revisions

  • NGC 6946 : The Fireworks Galaxy in Cygnus, Daniel.P
    Original
  • NGC 6946 : The Fireworks Galaxy in Cygnus, Daniel.P
    B
  • Final
    NGC 6946 : The Fireworks Galaxy in Cygnus, Daniel.P
    C
  • NGC 6946 : The Fireworks Galaxy in Cygnus, Daniel.P
    D

C

Title: Re Processed in 2023

Uploaded: ...

D

Title: 2015 process

Uploaded: ...

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NGC 6946 : The Fireworks Galaxy in Cygnus, Daniel.P