Last looks at Omega Centauri from Happy Jack
Stellarvue SV80 f/4.7 Astrograph
Uploaded 5/30/23

 
We
            knew the day would come, when the tall pine trees near our observatory
            in Happy Jack would grow too tall to get a good shot at this
            premiere object. Here is a shot I was able to sqeeze in this
            year in the few minutes it was between branches on those distant
            Ponderosa pines. This shot was taken when the sky was still light
            out, only an hour after sunset and is only 10 seconds long. The
            cluster is still bright enough to be seen, but against a deepening
            blue sky. Fortunately, Centaurus A was still above the tree line
            and I was able to get some time on this subject.

            
Select an image size for a larger view:

1400 x 1290


Instrument:  SV80S Astrograph with Televue 0.8x FF
Mount:  Home Made GEM
Camera:  ZWO ASI071MC Pro Color CMOS
Guider: ZWO ASI120 mini  w/4" f/10 SCT guidescope
Exposure:  10s
Location:  Happy Jack, Arizona, Elevation:  7000 ft.
Sky:  Seeing FWHM = 1 arcsec , Transparency 9/10
Outside Temperature:  45 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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