Backyard astrophotography in light-polluted Cologne-Dellbrück (SQM 19.8)
Skywatcher Esprit 100/550 ED, Skywatcher Flattener, Optolong LRGB, QHY268M
OAG with Lodestar X2
Mount AZ EQ6 GT
Image acquisition: CdC, APT, PHD2, dithering
LRGB each: 9 x 100s, mode 1, gain 56, offset 30, -10C, 20 flats each, 40 bias, 12 darks
Data calibration/integration: PixInsight
Image processing: PixInsight, Lightroom