NGC2371 in Gemini - Twin lobed planetary nebula
with 10" f/3.9 Astrograph
Uploaded 11/14/21

 
This
            was the first run on a deep sky object with our new Baader 4nm
            OIII filter added to the RGB data. This is a very small planetary
            for the 10 inch, only an arc minute across. Still, a comparison
            of standard RGB shot to the one with an extra hour of OIII shows
            the signal is stronger and more detailed.

            


            
Select an image size for a larger view:

1400 x 1290


The addition of an hour of extra OIII data is seen in this comparison here:


Instrument:  10" f/3.9 Orion Astrograph Newtonian with Baader MPCC
Mount:  Astrophysics 1200 QMD
CCD Camera:  SBIG 10XME NABG with Enhanced Water Cooling
Guider: ASI120  w/80mm Vixen piggyback refractor
Exposure:  120m
AstroDon RGB Combine Ratio:  1: 1.05: 1.2 with OIII data combined with GB
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 3 arcsec , Transparency 9/10
Outside Temperature:  45 F
CCD Temperature:  -25 C
Image Processing Tools: 
Maxim DL6:  Calibration, stacking deblooming, : Deepsky Stacker, PixInsight 1.8:  Curves, Deconvolution
Photoshop CC  Curves, Color Correction,  Cleanup

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