M56 - Globular Cluster in Lyra
with 8" f/3.9 Astrograph in Happy Jack
Uploaded 5/28/17

 
This
            colorful star field contains a small, but very condensed globular
            cluster far from the central core of our galaxy in Sagittarius.
            This cluster is 8.8 arcminutes in diamter and 8.4th magnitude
            and contains stars averaging 13 - 16th magnitude. The field is
            very rich, and contains several very nice colorful stars!

            


            
Select an image size for a larger view:

1400 x 1290

Instrument:  8" f/3.9 Orion Astrograph Newtonian with Baader MPCC
Mount:  Home made GEM with Byers Starmaster Drive
Camera:  Canon XTi DSLR modified by Hutech for full spectrum
Guider: Meade DSI Pro  w/60mm piggyback refractor
Exposure:  15mins total
Location:  Happy Jack, Arizona, Elevation:  6800 ft.
Sky:  Seeing FWHM = 1 arcsec , Transparency 9/10
Outside Temperature:  45 F
Image Processing Tools: 
Maxim DL6:  Calibration, aligning, stacking
PixInsight:  Curves, Deconvolution
Photoshop CS2:  Curves, Color Correction, Gradient removal (Grad Xterminator), Cleanup

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