Lagoon Nebula Reprocessed
03-Dec-2015
Cloudy nights and full moons gave me a chance to have another look at one of my first deep sky photographs. The first image taken through my telescope that made me say "wow". I decided to try reprocessing the original data with the skills I've learned in the past few months.
The Lagoon Nebula is estimated to be between 4,000-6,000 light years from the Earth.
Image as originally processed on 14-Jun-2015:
Reprocessed Image:
- 14x 120s bayer + 3x dark + 12x bias
Total exposure time: 28 minutes.
Hardware:
- Celestron EdgeHD 1100 with CGEM DX mount
- Canon 5D mark III
- Orion StarShoot Autoguider
- Orion Short Tube 80 guidescope
Location:
- Orange zone in Brisbane, Australia. (Bortle 7)
Software:
- Captured with Canon EOS Utility
- Guiding with PHD
- CCDInspector: Image analysis & rejection
- CCDStack 2+: De-bayer to LRGB, calibrate, align, normalize, stack, DDP, combine RGB.
- Astra Image 4.0: Deconvolution
- Photoshop CC: Create and apply synthetic flat field, reduce noise, shrink stars, high pass filter, integrate L+RGB, color balance, contrast.