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Sunspot 904 on 16th August - a lesson in seeing!
Hello,
Here is an illustration of the incredible range of seeing that can occur in a single AVI when imaging the Sun using my Philips ToUcam.
This is Sunspot 904, captured on 16th August 2006, at 10:56am AEST (GMT+10) using my C9.25 and a Televue x2.5 Powermate. Each image is a single frame from the same 1800 frame AVI; the top image = Frame 1121, the bottom image = Frame 13.
Out of 1800 frames, less than 10 look like the top image, the remainder are similar in quality to the bottom image, which isn’t the worst I have seen. This is a graphic illustration of good and bad moments of seeing when viewed through the prevailing jet stream.
Acquired in K3CCDTools, 1/100 sec, 5fps. Frames grabbed in Virtual Dub.
It’s amazing how Registax can turn a sow’s ear into a silk purse.
Cheers
Dennis
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