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Comet
Holmes
Comet
in extreme outburst in Perseus
Uploaded
11/10/07
This
comet continues to evolve in ways no one expected. On this night
of November 8th, the comets head was so huge it required several
test shots to ensure I was not cutting off the comets leading
edge of its inner coma. Here in this image, several rays can
be seen in the inner coma, and a large clumpy region leading
the nucleus. The comets biggest surprise is its extremely yellow
coloration, seen in this G2V calibrated image as a "leaden
yellow" coloration. An interesting bow shock structure appears
on the comets leading edge, with multiple edges as well. |
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: RGB = 40:40:40 = 2h
AstroDon RGB Combine Ratio: 1: 1.05: 1.11
Location: Payson, Arizona, Elevation: 5150 ft.
Sky: Seeing FWHM = 5 arcsec (Maxim DL - 10min subframe), Transparency 9/10
Outside Temperature: 45 F
CCD Temperature: -30 C
Image Processing Tools:
Maxim DL: Calibration, deblooming (Starizona Debloomer), aligning, stacking
PixInsight: Curves, Deconvolution, noise reduction
Photoshop CS2: Curves, Color Correction, Gradient removal (Grad Xterminator), Cleanup
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