BEHIND THE IMAGE
Notes from the session
Image:
24x 420s luminance bin2x2 + 20 flat + 37x dark + 120x bias
12x 180s red bin3x3 + 20 flat + 20x dark + 120x bias
12x 180s blue bin3x3 + 20 flat + 20x dark + 120x bias
12x 180s green bin3x3 + 20 flat + 20x dark + 120x bias
24x 600s Hα bin2x2 + 22 flat + 37x dark + 120x bias
Total exposure time: 8 hours 36 minutes.
Hardware:
Celestron EdgeHD 1100 with CGEM DX mount
QSI 683-wsg Camera @ -15°C
Astronomik Type 2c LRGB & 6nm Hα filter
Orion StarShoot Autoguider
Starlight Xpress Adaptive Optics
Location:
Orange zone in Brisbane, Australia. (Bortle 7)
LRGB: Average seeing + 50% moon phase (waxing gibbous).
Hα: Average seeing + full moon.
Software:
Captured with AstroArt 6
Guiding with PHD2 + PHD_Dither
Aladin 8.0: Planning & camera alignment.
CCDInspector: Image analysis & rejection
CCDStack 2+: Calibrate, align, normalize, stack, curves, combine RGB.
Astra Image 4.0: Deconvolution
Photoshop CC: Reduce noise, shrink stars, high pass filter, shadows/highlights, integrate Hα+L+RGB, color balance, contrast.
Other items of interest:
Asteroid observed while blinking data:
2015 TG237
24x 420s luminance bin2x2 + 20 flat + 37x dark + 120x bias
12x 180s red bin3x3 + 20 flat + 20x dark + 120x bias
12x 180s blue bin3x3 + 20 flat + 20x dark + 120x bias
12x 180s green bin3x3 + 20 flat + 20x dark + 120x bias
24x 600s Hα bin2x2 + 22 flat + 37x dark + 120x bias
Total exposure time: 8 hours 36 minutes.
Hardware:
Celestron EdgeHD 1100 with CGEM DX mount
QSI 683-wsg Camera @ -15°C
Astronomik Type 2c LRGB & 6nm Hα filter
Orion StarShoot Autoguider
Starlight Xpress Adaptive Optics
Location:
Orange zone in Brisbane, Australia. (Bortle 7)
LRGB: Average seeing + 50% moon phase (waxing gibbous).
Hα: Average seeing + full moon.
Software:
Captured with AstroArt 6
Guiding with PHD2 + PHD_Dither
Aladin 8.0: Planning & camera alignment.
CCDInspector: Image analysis & rejection
CCDStack 2+: Calibrate, align, normalize, stack, curves, combine RGB.
Astra Image 4.0: Deconvolution
Photoshop CC: Reduce noise, shrink stars, high pass filter, shadows/highlights, integrate Hα+L+RGB, color balance, contrast.
Other items of interest:
Asteroid observed while blinking data:
2015 TG237