Backyard astrophotography in light-polluted Cologne-Dellbrück (19.5 mag/”2)
William Optics GT 81 FD 478mm f/5.9, TSFlat2, IDAS LPS P2, ASI 294MC Pro
OAG with ALccd QHY 5L-II mono
Mount AZ EQ6 GT
Image acquisition: APT, PHD2, dithering
63 x 200s, gain 120, -10C, 25 flats, 50 bias, 22 darks
Data calibration/integration: PixInsight
Image processing: PixInsight, Photoshop (APF-R), Lightroom