NGC2174 in Orion 
Emission and Reflection Nebulosity in Orion
Uploaded 2/28/21

 
This
            gorgeous emission nebula has a surprising amount of blue reflection
            nebulosity along the edge. Nearly every shot I've seen of this
            object uses Halpha filters and precludes the blue parts. To take
            this image, an additional hour of white light RGB data was added
            in to highlight the sky blue reflection components.

            
Select an image size for a larger view:

1400 x 1200


Instrument:  10" f/3.9 Orion Astrograph Newtonian with Baader MPCC
Mount:  Astrophysics 1200 QMD
Camera:  ZWO ASI071MC Pro Color CMOS
Guider: ZWO ASI mini  w/80mm piggyback refractor
Exposure:  4 hours total
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 2 arcsec , Transparency 9/10
Outside Temperature:  35 F

Image Processing Tools: 
Maxim DL6:  Calibration, Color Conversion, aligning, stacking
PixInsight:  Saturation Curves
Photoshop CS2:  Curves, Color Correction, Gradient removal (Grad Xterminator), Cleanup

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