Thread: Orionids?
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Old 17-10-2006, 01:52 PM
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middy
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Join Date: Feb 2006
Location: Brisbane
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Thanks for the info.

Lets do some calculations:

ZHR says 20 meteors/hour.

My StarTracker will track for 3/4 of an hour before I have to reset it. This gives a potential 3/4 * 20 = 15 meteors/hour.

With my camera on wide angle (~ 35mm) I will only be aiming at a small section of the full 360 deg. arc around the radiant point. Lets say 60 deg. for arguments sake.

Therefore the number of meteors available to me is 15 * 60/360 = ~2 meteors/hour.

My camera has a max. exposure time of 64 secs. It then spends another 64 secs. processing the image before it is ready to take another shot. This gives me a 50% duty cycle. Hence my 2 available meteors/hr becomes 1 meteor/hour.

I can live with those odds. I'll have a crack.
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