Home Information Equipment DIY Projects Weather Links

2013: NGC7380; The Wizzard Nebula in Cepheus in H-alpha
Image details
Date:  September 4,  and 5, 2013
Exposure: 7 hours (21x 20 min), ISO800, 12 Darks, 30 Flats, and 30 Flat darks

Telescope: 8" Skywatcher Newton
@F/5 with MPCC and Baader 7 nm Ha-filter 
Mount: NEQ6-pro, controled by EQmod/CdC, guided by  QHY5/9x50 Finder Guider/PHD
Camera: Peltier-cooled Canon 350Da (TEC@10C)
Location: Emmen, The Netherlands

High resolution: (2,20 Mb)
DSLR-LLRGB post-processing luminance workflow  according to Scott Rosen's video tutorial:
 
Original 32-bit floating point RGB image in Photoshop CS3:
 -In Chanels fill green and blue chanels with black
 
-Convert RGB image to 16-bits greyscale
 -Convert back to RGB [RGB reconvertion is only done for easy of interpretation of PS histgram and tools]
 -Star repair
 -Crop
 -GradientXterminator (med/low, and fine/medium)
 -Levels to set white point
 -Carboni's v1.6 Deep Space Noise Reduction [Removes noise from background, not DSO]
 -Curves 1x (anchored background and highlights)
 -High pass filtering on the details in NGC7380 (8px overlay & 40px soft light; Don Goldman method)


All content on astrovirus.nl 2010-2013 by T. Schuurman