California Nebula
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Image:
• Target: NGC 1499 | Emission Nebula in Perseus
• Apparent Magnitude: +6
• Light frames: 29 x 300” @ ISO1600 ( 145 Minutes)
• Dark frames: 16 x 300” @ ISO1600
• Flat frames: 32 x Av Mode @ ISO 1600
• Bias frames: 32 x 1/8000” @ ISO1600
• Guided with Orion SSAG using PHD2
Environmental:
• Date: 7 January 2016
• Location: YMCA, Yelagiri , Tamil Nadu
Main Equipment:
• Telescope: Sky-Watcher 8″ f/5 Newtonian Reflector
• Mount: Sky-Watcher NEQ6
• Camera: Canon 5D Mark II [ Unmodified ]
• Filter: IDAS LPS 2″ Filter
Accessories:
• Coma corrector: Sky-Watcher 0.9x Coma Corrector
• Power-Supply: 150AH Inverter Battery with Inverter
Integration and Processing:
• Processed in PixInsight 1.8
• Batch Preprocessing Script with Cosmetic Correction
• Dynamic Crop
• DBE
• Background Neutralisation
• Colour Calibration
• Histogram Transformation
• ACDNR
• Saturation Curves
• LHE
• SCNR
• Final Crop in PS
Problems Faced:
1. Colour Calibration was a challenge due to the colour shift caused by the Light Pollution filter
2. Went for a rather aggressive processing to bring out the reds.
Full Resolution: http://jnishant.com/RAW/CaliforniaNebula_V3.jpg
