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Hyades Cluster and NGC 1647


Hyades Cluster and NGC 1647

Acquisition:

Bortle 7 skies, with waxing 94% gibbous moon
Nikon D5600 camera (unmodified)
ISO 200
Nikkor AF Micro 60mm f/2.8 D macro lens at f/5.6
iOptron CEM26 mount
30s x 130 frames (1h 5m)

Processing:

Siril 1.2.1:

Crop to 3200 x 3600px
Rotated 90°
BQ Octantis' procedure of Pixel Math white balance, background subtraction, histogram conditioning, and black clipping
Modified arcsinh stretch (5X)

RawTherapee 5.9:

L*a*b chrominance/luminance noise reduction
Luminance noise reduction
Saturation

GIMP 2.10:

Color balance (a bit of green in background)
Luminance curve
Saturation






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