Comet
Lulin
Uploaded 2/21/09
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Select an image size for a larger view:
1290 x 960
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This
is one frame in a sequence of 83 continuous shots taken by the
robotic barn door mount yesterday morning with the Sigma 8mm
fish eye lens looking generally southeast. I was testing a new
polar bore scope that night, which worked great as the stars
are very round and the unit is tracking well. This frame around
1am shows a bright green dot on the meridian, very near the center
of the frame - the 5.5 mag comet Lulin. The inset shows a 10x
enlargement which not only shows the nice tight stars images,
but that Lulin has a much more developed tail. The next few days
the comet will be closest to Earth and the view will be even
better! |
Instrument: Sigma 8mm f/3.5 fisheye lens @f/4
Platform: Robotic Barn Door Mount
Camera: Hutech Modified Canon XTi @ ISO800
Exposure: 5m
Filters: None
Location: Payson, Arizona
Elevation: 5150 ft.
Sky: Seeing 4/10, Transparency 7/10
Outside Temperature: 35F
Processing Tools: Photoshop CS2, Maxim DSLR
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