This is the picture taken with my new ToupTek ATR533C. So far, I am really happy with that camera. I have only used a stock DSLR before, so the upgrade was drastic. I wanted to do 300s exposures, but it was almost full moon so I decided to do 180s ones instead. Right now, I am happy that I did that, because probably I did my polar alignment inaccurately and even on the 180s exposures I can see star trails. The original picture was Ha dominant so I decided to try to process it in false color.
This was my first time trying to process something in false color and I think it turned out beatufully. I am still learning so any advice is appreciated.
Equipment:
* ToupTek ATR533C (gain 101, offset 40, cooled to -10) * Askar FMA180 Pro * iOptron skyguider pro * sv220 7nm Ha OIII dual narrowband filter * ToupTek GPM462M guide camera * SvBony 30mm f/4 guide scope * Mele Quieter 4C
Acquisition:
* 60 x 180s lights * 50 darks * 50 flats * 50 dark flats * Bortle 5, almost full moon
Software:
* NINA * PHD2 * Siril
Processing in Siril:
* Stacked in Sirilic which created monochromatic images of Ha and OIII * Processed Ha and OIII separately using Graxpert background extraction and Cosmic clarity sharpening * Pixel math to create one colorful image (R=Ha, G=0.6Ha+0.4OIII, B=OIII) * Starnet star removal * Modified arcsinh transform with even weighted luminance * Generalised hyperbolic transform * Black point to reduce background * Syqon prism denoising * Star recomposition #space source