Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  Iris Nebula  ·  NGC 7023  ·  VdB139
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NGC7023 Iris Nebula, Mathias Radl
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NGC7023 Iris Nebula

Getting plate-solving status, please wait...
NGC7023 Iris Nebula, Mathias Radl
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NGC7023 Iris Nebula

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  • NGC7023 Iris Nebula, Mathias Radl
    Original
  • NGC7023 Iris Nebula, Mathias Radl
    B
  • Final
    NGC7023 Iris Nebula, Mathias Radl
    C

B

Description: I tried to remove the dust mark in the left upper corner. In APP I was not able to remove it, so i stacked the luminance layer one more time with DSS. Here the dust marks wer removed very good. But the stacking result itself, I think is better with APP. I have to try some other preferences in APP. ;-) for sure it has to work also with APP.

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C

Description: Finally the flat calibration worked also in APP :-D

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NGC7023 Iris Nebula, Mathias Radl