Whirlpool Galaxy: M 51 + NGC 5195 (with planetary camera)

Galaxies: Whirlpool Galaxy - M 51, NGC 5195,

IC 4278, IC 4277, PGC 3556035

Star magnitude limit ≈ 20.0

 

Exposure: 139 minutes

stacked the best 278 light frames (30s each @ 228 gain) out of 385

+ 5 dark frames

 

Telescope: Orange 1977 vintage Celestron C8 (203 F/10 SC)

Mount: EQ5 with ST4 hand controller (no GoTo)

Reducers: Celestron 0.63x + Svbony 0.50x (@0.74x)

Camera: QHY5III462C Color (@FullHD RAW16)

recording Visible + Near Infrared light (no filters)

Guide: 70/280 Guidescope + QHY5L-II Color Camera

 

Recording scale: 0.632 arcsec/pixel (plate solved)

Equivalent focal length: 946mm F/4.66

 

Plate Solving data:

Center (RA, Dec): (202.478, 47.218)

Center (RA, hms): 13h 29m 54.787s

Center (Dec, dms):+47° 13' 03.028"

Size: 19.9 x 11 arcmin

Pixel scale: 0.632 arcsec/pixel

Orientation: Up is 257.4 degrees E of N

 

Recording: SharpCap 4.0 (Live Stack mode)

Guiding: PHD2 2.6.11

Stacking/Alignment/Deconvolution: AstroSurface T1

Final Elaboration/Crop: GIMP 2.10.30

 

Genova, Italy (06 Apr 2022 - 00:27 GMT+2)

Done