The Rosette Nebula in Monoceos 
with NEXUS coma corrector
with 10" f/3.9 Astrograph @ f/2.9
Uploaded 12/29/23

 
This
            week we would like to share with you another inspiring image
            taken with our Newtonian astrograph and the incredible Nexus
            coma corrector. This field covers a whopping 2.3 degrees, and
            fully covers the large size of the entire Rosette Nebula. Comparisons
            to the shot I took last year with my Stellarvue 80mm astrograph
            which has mearly the same field, shows a tremendous increase
            in the resolution of the dark veins and wispy Herbig-Haro object
            inside the hole. This G2V calibrated image not only shows the
            correct star colors, but the beautiful pinks and reds of the
            nebulosity as well. Thanks for looking!

            
Select an image size for a larger view:

1400x1290


Instrument:  10" f/3.9 Orion Astrograph Newtonian with Nexus 0.75x CC
Mount:  Astrophysics 1200 QMD
CCD Camera:  ATIK 16200 
Guider: ASI290  w/80mm WO Zenithstar 81 piggyback refractor
Exposure:  120m
Astronomik  RGB Combine Ratio:  1: .9: 1.6 = G2V  calibrated
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 3 arcsec , Transparency 9/10
Outside Temperature:  35 F
CCD Temperature:  -30 C
Image Processing Tools: 
Maxim DL6:  Calibration, PixInsight:  All Remaining processing, Production finishing: Photoshop CS2

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