Nebula in Perseus
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 = 120:20:20:20
AstroDon RGB Combine Ratio: 1: 1.05: 1.2
Location: Payson, Arizona, Elevation: 5150 ft.
Sky: Seeing FWHM = 15 arcsec (Maxim DL - 10min subframe), Transparency 9/10
Outside Temperature: 30 F
CCD Temperature: -30 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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This was taken
in high winds with relatively poor seeing, however the sky was
very transparent offering an opportunity to attempt to record
far more dim nebulosity than I have before on this extended object.
Extreme care was taken on maintaining the color present in the
original G2V balanced RGB data by overlaying using Hue the RGB
data over the final LRGB. The delicate pinks, oranges and reds
were thus faithfully recorded here and are not distorted by the
process of combining the luminance data into the final image.
I was also careful not to have any white clipping on any color
layers to preserve the inner core shades as well.
This V shaped nebula
spans over 20 arc minutes in size and is one of many tiny nebula
that peppers the Perseus/Cassiopeia region.