Imaging telescopes or lenses: CELESTRON EdgeHD 8
Imaging cameras: QHYCCD QHY8L
Mounts: Sky-Watcher NEQ-6 PRO GoTo SkyScan
Guiding telescopes or lenses: Skywatcher ED 80/600
Focal reducers: Celestron .7x
Software: EZCap · PixInsight · PHD Guiding 2.5.0
Accessory: Orion Starshoot Auto-Guider
Dates:April 8, 2014
Frames: 9x60" -15C bin 1x1
Integration: 0.1 hours
Flats: ~11
Bias: ~20
Avg. Moon age: 8.40 days
Avg. Moon phase: 60.73%
Mean FWHM: 2.40
Astrometry.net job: 1125348
RA center: 13h 42' 12"
DEC center: +28° 24' 57"
Pixel scale: 1.082 arcsec/pixel
Orientation: -93.920 degrees
Field radius: 0.549 degrees
Resolution: 3040x2024
Locations: Duc, Prayssas, Lot et Garonne, France
Only 9 x 1 min run. I was not able to stack another set of 5sec exposures in PI without introducing al lot of noise. Anyway there is no saturated stars, which was the reason for short exposures.
Pre-processing done in Pixinsight :
- overscan area offset correction
- bias correction
- flat correction
- hot pixel correction
- debayer
- registration
- stack
Processing done in Pixinsight :
- backgroung color neutralisation
- color calibration using cluster
- residual sky background substraction
- color saturation boost
- green neutral
- non linear image creation
Final image :
- jpeg calibration done in Mac Photo (dark pt adjust, denoise)
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