Celestron SCT 280/2800 Atik 314L+ red. 0,63x
Adopted limb darkening: 0.5 | EXP. 90s | binning 1+1 | defocus | FWHM 6.9 px (5.5 arc-sec/pixel) | weather: clear, dry | bortle 5, encircling light pollution | Photometric aperture radii: 10-26-32 | Baader IR Pass filter 685 nm | Moon illumination: 92%, distance: 54°

Lx200 12" ACF Moravian G4-9000
sloan i

Planewave CDK 17" & SBIG STXL 11002
120 sec pics on Red filter.

SC 10 F/6 +EQ8R + camera SBIG STF-8300M
exposure 60s

MAO, 35cm MCT 350/1200 + Apogee Alta-U47-BB
RAW data calibrated and reduced using AstroImageJ, including information on AIRMASS and additional (optional) detrending parameters for Width_T1 and Sky/Pixel_T1.

C8 + HEQ5 + ASI294MC
Comparison stars from NOMAD.
Data processed with Siril