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Try to estimate their speed ...choose a height where we expect them to show up ...measue stuff in the photo match it to the exposure time...but I think if you have a shower that is something to be proud of and maybe of interest to some one studying trajectories. ... but if its spider webs it will be a whole different interest group.
Who can calculate their speed...there seems a pulse in the light that time unit would be nice to know...like if they afe travelling at 100,000 lkms per hour and flashing mesages to each other for the value of 22/7 ... well we need to know...it may be the first wave of "them" and you have caught them at it...sneaky when its dark.
Alex
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