NGC5897
Faint Globular Cluster in Libra
Uploaded 6/1/14

 

            
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This
            new image was taken while waiting for a comet to rise in the
            east, and was near the meridian. This faint globular is listed
            as 11.4 magnitude and 11 arc mins in size. Stars range from 13
            to 16 and fainter.
Instrument:  12.5" f/5 Home made Newtonian
Mount:  Astrophysics 1200 QMD
CCD Camera:  SBIG 10XME NABG with Enhanced Water Cooling
Guider: Meade DSI Pro  w/Lumicon Newt Easy Guider
Exposure:  LRGB = 30:3:3:3
AstroDon RGB Combine Ratio:  1: 1.05: 1.2
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 5 arcsec (Maxim DL - 10min subframe), Transparency 9/10
Outside Temperature:  55 F
CCD Temperature:  -20 C
Image Processing Tools: 
Maxim DL:  Calibration, deblooming (Starizona Debloomer), aligning, stacking
PixInsight:  Curves, Deconvolution
Photoshop CS2:  Curves, Color Correction, Gradient removal (Grad Xterminator), Cleanup

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