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Contains:  IC 1185, IC 1183, IC 1182, IC 1181, IC 1178, IC 1179, IC 1173, NGC 6047, NGC 6045, NGC 6044, NGC 6041, NGC 6040
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Abell 2151 - Galaxies in Hercules, 





    
        

            Daniel.P
Abell 2151 - Galaxies in Hercules

Abell 2151 - Galaxies in Hercules

Technical card

Resolution: 2961x1962

Dates:July 24, 2016July 25, 2016

Frames:
2x600" -15C bin 1x1
20x900" -15C bin 1x1

Integration: 5.3 hours

Darks: ~7

Flats: ~5

Bias: ~50

Avg. Moon age: 20.04 days

Avg. Moon phase: 71.51%

Mean SQM: 21.20

Mean FWHM: 2.80

Temperature: 18.00

Astrometry.net job: 1497991

RA center: 241.265 degrees

DEC center: 17.705 degrees

Pixel scale: 0.759 arcsec/pixel

Orientation: -85.217 degrees

Field radius: 0.374 degrees

Locations: Duc, Prayssas, Lot et Garonne, France

Description

This is my first photo of this summer ... some few more to be processed.

FWHM measured in PI : 2.8 arcsec (Moffat 4)

Pre-processing done in Pixinsight :
- overscan area offset correction
- bias correction
- dark correction using 7 x 1800 s darks
- flat correction
- hot pixel correction
- debayer
- registration
- stack
Processing done in Pixinsight :
- crop
- backgroung color neutralisation
- color calibration using stars
- residual sky background substraction
- RGB registration to cancel slight color shift
- Median Multi Scale noise reduction masked
- non linear image creation
- green neutral
- color saturation boost masked
Final image :
- jpeg calibration done in Mac Photo (levels adjust and bright zone compression)

Comments

Author

Daniel.P
Daniel.P
License: None (All rights reserved)
1382
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Abell 2151 - Galaxies in Hercules, 





    
        

            Daniel.P