Test image of IC417 in Auriga with
new flat field box and the 10" f/3.9 Astrograph
Uploaded 2/3/16




            
This flat field
            integrating box illuminates the full field of the new 10 inch
            and has adjustable brightness. It is lit internally with four
            white LEDS that have had the top lenses sanded flat for a diffuse
            light to the inside of the box. Here is the box, made from white
            foamboard on the bench in the house lab:

            


            
 

            
Here you can see
            the adjustable power supply, with an internal 9 volt battery
            for power:

            


            
 

            
Night view of lit
            diffusing screen, made from lexan with the white plastic covering
            still not peeled off:

            


            
 

            
Here outside fit
            onto the telescope as it will be used at night. Exposures with
            the CCD are 2 seconds for Bin1 and around 1 second for bin2 color
            filters.

            


            
 

            
IC417, 9 minutes
            exposure with flats applied. Very bad seeing -  no guiding possible.

            



Instrument:  10" f/3.9 Orion Astrograph Newtonian
Mount:  Astrophysics 1200 QMD
CCD Camera:  SBIG 10XME NABG with Enhanced Water Cooling
Guider: Meade DSI Pro  w/80mm piggyback refractor
Exposure:  9m Lum, 9 min RGB
AstroDon RGB Combine Ratio:  1: 1.05: 1.2
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 3 arcsec , Transparency 9/10
Outside Temperature:  25 F
CCD Temperature:  -20 C
Image Processing Tools: 
Maxim DL:  Calibration, deblooming (Starizona Debloomer), aligning, stacking
PixInsight:  Curves, Deconvolution
Photoshop CS2:  Curves, Color Correction, Gradient removal (Grad Xterminator), Cleanup

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