DESCRIPTION + OBJECTS: Very interesting and rich region of nebulosity in Cassiopea constellation. From left to right you can see Sh161, Sh158, NGC7538, Sh169, Sh152, NGC7635 Bubble nebula, M52 (NGC7654), NGC 7510, Sh157 Lobster Claw nebula in the center. FOV 4° x 2,6°.
GEAR: Nikon Z7 Kolari Full Spectrum + Nikkor 500/5,6 PF, Astronomic UV/IR/L2 Clip in filter, Rollei Astroklar light pollution filter, Dew heater strip, Sensor pixel scale xx 1,79 arcsec/px, tracking mount iOptron CEM60EC - 3 star alignment, no auto guiding.
ACQUISITION: September 3rd, 2021, Struz, CZ, Subexposure 180s, f 5,6, ISO 2000, Interval 15 s, RAW-L, Light 41x, Dark 30x, Bias 20x, Flat 20x, DarkFlats 10x. Total exposure time 123 min. Night, no wind, 10°C, Backyard, light pollution - Bortle 5.
STACKING AND POST PROCESSING: AstroPixelProcessor (stacking, background neutralization, light pollution removal, calibrate background), Adobe Photoshop CC 2021 (black and white point settings, stretching, stars dim, enhance DSO, contrast setting). No cropped, image size 3840 x 2560 px.
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