NGC1973, 75, 77 in Orion - The "Running Man" Nebula
Emission nebula shaped like a Marathoner
Uploaded 3/6/21

 

            
This incredible object
            lies about 1 degree north of the more famous M42 Orion Nebula,
            and is part of the same molecular cloud complex. consisting of
            a blue reflection nebular core surrounded by dust and some emission
            nebulosity, it is very bright, large and fits perfectly in the
            80 arcmin field of the 10 inch as you can see here.

            
The dark violet core
            has a shape that has been attributed to having similarities to
            a "running man", which is a bit difficult to see with
            such a nebulous extent seen here. Along the top and right sides
            here in this photo, the nebulosity can be seen to have a more
            brown dusty color.

            


            
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:  120 m ( 5 min subs)
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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