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Re: (meteorobs) Re: Angular velocities
In a message dated 99-07-29 00:46:34 EDT, you write:
bob<<
Samples of various lengths and magnitudes are pre-drawn on the
chart to provide a basis for comparison. <<
How do you have magnitudes predrawn on the chart for comparisons?
bob>> The key factor is
the length. If the length is determined accurately then the angular
velocity can be determined after the watch using the radiant distance
and the altitude. <<
Wouldn't you need to note time or the duration somewhere? Can you give an
example or two as to the process you go thru in determining angular velocity?
bob>>This would provide a very accurate result for
determining shower association.<<
For determining shower association purposes, being "very accurate" with
angular speed estimations or just accurate enough with a speed scale will
still give you with the same results.
bob>> I also wish to make it
clear that the extra work actually involves calculations AFTER the watch
and does not burden me out in the field.
>>
So if a meteor lasts a fraction of a second, you don't in someway note this?
Or mentally project how far a meteor would travel in 1 second if it continued?
geozay
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