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Old 01-07-2007, 01:30 AM
tornado33
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tornado33 is offline
 
Join Date: Jan 2005
Location: Newcastle, NSW, Australia
Posts: 4,116
Supernova remnant RCW103 in Norma Ha.

Hi all
Did some more testing of the Toucam for guiding. First I used the mighty 300mm F2.8 lens from Bert, with the Toucam attached to the small guidescope I use, manually guiding by looking at the guidestar on the laptop stationed nearby
3x15 mins ISO400.
Then I set up the 10 inch and used the webcam in the off axis guider. Wind was strong so I wasnt expecting to get anything usable, just testing, yet I was surprised despite the buffeting to get only slightly trailed stars, the guidestar was really jumping all over the place. Its 2x15 mins ISO 400

Both shot with Baader 7Nm Ha filter, Idas uv/ir filter, MPCC used with the 10 inch shot, and both with Houghys cooled 350D, sensor temp round -1 deg C
Full moon present.
Its a lot easier sitting on a seat in my freezer suit guiding by looking at the laptop and making corrections rather then standing and looking down the eyepiece
Scott
Attached Thumbnails
Click for full-size image (rcw103 3x15mins iso400cooled-1 300mm f2.8 ha.jpg)
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Click for full-size image (rcw103 2x15 min iso400 ha cooled -1 webcamguide windy.jpg)
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