NGC 281 Pacman Nebu...
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2023-09-16: APP 2.0.0-beta23 has been released !

Improved performance again, CMD-A now works in macOS File Chooser, big improvement for bad column cosmetic correction, solved several bugs

We are very close now to  releasing APP 2.0.0 stable with a complete printable manual...

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NGC 281 Pacman Nebula

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Neutron Star
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Posts: 54
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NGC281 Pacman Nebula

Telescop           : Celestron 8" Newtonian
Mount              : Celestron AVX
Image cam       : QHY 163M
Coma corrector : Baader Rowe-II 2"
Guide scope      : SvBony 30/120
Guide cam        : ASI120MM-S
Ambient temp.  : 4 degree C
Sensor Temp.    : -15 degree C
Filters               : Optolong 7nm Ha, SII, OIII 36mm unmounted
Integration      : 7x300sn. Ha, 8x300sn. SII, 8x300sn. OIII, 30x300sn. dark, 30 flat and 30 dark flat per filter.
Softwares          : Imaging N.I.N.A, guiding PHD2, stacking, calibrating and processing Astro Pixel Prosessor.
25.Sept.2022 Sorgun, Güdül, Ankara, Turkiye. Bortle class 4-5
Pac SHO Hubble 3

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Very nice! You may have a bit of a collimation issue maybe, looking at the stars.