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Scroll down for older images (last updated: 01/12/2008 )

8P Tuttle

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Comet 8P Tuttle
Date January 11, 2008
Exposure LRGB 7:7:7:7 (unbinned and cropped; combined comet and stars)
Camera STL11000M with Astronomik filters
Telescope Takahashi Sky90 f/4.5 on Losmandy G11 w/Gemini
Guiding Remote guide head with E-finder
Processing MaximDL, PhotoshopCS2, GradientXterminator
Comments Mild 46º F; moderate seeing with comet low in the south


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Comet 8P Tuttle
Date January 2, 2008
Exposure LRGB 5:5:5:5 (unbinned and cropped; combined comet and stars)
Camera STL11000M with Astronomik filters
Telescope Takahashi Sky90 f/4.5 on Losmandy G11 w/Gemini
Guiding Remote guide head with E-finder
Processing MaximDL, PhotoshopCS2, GradientXterminator
Comments Cold 12º F; clear with moderate seeing


Click for full resolution crop

Full resolution inverted view of the luminance data

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Comet 8P Tuttle
Date January 1, 2008
Exposure LRGB 4:4:4:4 (unbinned and cropped; stack on comet nucleus)
Camera STL11000M with Astronomik filters
Telescope Takahashi Sky90 f/4.5 on Losmandy G11 w/Gemini
Guiding Remote guide head with E-finder
Processing MaximDL, PhotoshopCS2, GradientXterminator
Comments Cold 16º F; windy with fast moving clouds

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Comet 8P Tuttle
Date December 25, 2007
Exposure LRGB 13:13:13:13 (unbinned and cropped; stack on comet nucleus)
Camera STL11000M with Astronomik filters
Telescope Takahashi Sky90 f/4.5 on Losmandy G11 w/Gemini
Guiding Remote guide head with E-finder
Processing MaximDL, PhotoshopCS2, GradientXterminator
Comments Cold 36º F;  waning moon rising

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Comet 8P Tuttle
Date December 24, 2007
Exposure LRGB 7:7:7:7 (unbinned and cropped; stack on comet nucleus)
Camera STL11000M with Astronomik filters
Telescope Takahashi Sky90 f/4.5 on Losmandy G11 w/Gemini
Guiding Remote guide head with E-finder
Processing MaximDL, PhotoshopCS2, GradientXterminator
Comments Cold 35º F;  moon one day past full in the sky

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Comet 8P Tuttle
Date December 23, 2007
Exposure LRGB 15:15:15:15 (unbinned and cropped; stack on comet nucleus)
Camera STL11000M with Astronomik filters
Telescope Takahashi Sky90 f/4.5 on Losmandy G11 w/Gemini
Guiding Remote guide head with E-finder
Processing MaximDL, PhotoshopCS2, GradientXterminator
Comments Cold 32º F; full moon high in the sky

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Comet 8P Tuttle
Date December 23, 2007
Exposure LRGB 1:1:1:1 (unbinned and cropped)
Camera STL11000M with Astronomik filters
Telescope Takahashi Sky90 f/4.5 on Losmandy G11 w/Gemini
Guiding Remote guide head with E-finder
Processing MaximDL, PhotoshopCS2, GradientXterminator
Comments Mild 32º F; full moon high in the sky

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Comet 8P Tuttle
Date December 18, 2007
Exposure LRGB 15:15:15:15 (unbinned and cropped; stack on comet nucleus)
Camera STL11000M with Astronomik filters
Telescope Takahashi Sky90 f/4.5 on Losmandy G11 w/Gemini
Guiding Remote guide head with E-finder
Processing MaximDL, PhotoshopCS2, GradientXterminator
Comments Mild 40º F; waning moon and some high thin clouds

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Comet 8P Tuttle
Date December 16, 2007
Exposure LRGB 9:9:9:9 (unbinned and cropped)
Camera STL11000M with Astronomik filters
Telescope Takahashi Sky90 f/4.5 on Losmandy G11 w/Gemini
Guiding Remote guide head with E-finder
Processing MaximDL, PhotoshopCS2, FITS Liberator
Comments 28º F; clouds ruined a few frames in each color

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Comet 8P Tuttle
Date December 13, 2007
Exposure LRGB 12:12:12:12 (unbinned and cropped)
Camera STL11000M with Astronomik filters
Telescope Takahashi Sky90 f/4.5 on Losmandy G11 w/Gemini
Guiding Remote guide head with E-finder
Processing MaximDL, PhotoshopCS2
Comments Some clouds drifting through; cold

                                    All text and images © Gregg L. Ruppel 1998-2007.