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Re: (meteorobs) Meteor length question



>For example if a NTA  is seen heading to the horizon it has crossed the STA
>radiant. How could you tell which shower it belongs to?

Kevin,

Adding to what Rainer has already said, this should not happen if you are
careful in choosing the center of your field of view. This is hard to depict
through email, but assume the X's below are the radiants...

                        STA      NTA        FOV
                         X        X          O

This arrangement will result in problems with identification since meteors
beginning to the "right" of the NTA radiant and traveling toward your FOV
may be confused as either a STA or NTA. A correct FOV position prevents this....

                        STA      NTA
                         X        X

                           FOV
                            O

Now a STA or NTA meteor will appear to come from different locations.

Depending on the showers involved, velocity may also be an indication as to
which shower it belongs to. But it's a simple matter to choose a good FOV
location.

Hope this is helpful.

Mark Davis
MeteorObs@charlestondot net