(meteorobs) September Perseids

[Francisco Ocaña]

Enrico Stomeo escribió:
> Now with 12 meteors which fitt to the radiant, I obtained the 
> same best positional determination in RA 48.2 DEC +38.0 and a
> velocity of 57.0 km/sec, still different from 64 km/sec.
>
> Enrico STOMEO
> Italy, +45.56726 -12.11395 +20 (IMO code 14083) 
>
>   
Hello Enrico,

it is pretty strange. Jenniskens make reference also to 2 or 3 other 
papers about this shower, but all with Vg>62km/s. I am not sure about 
how does Radiant find the best solution, but perhaps it fails to 
calculate the velocity or the position when the meteors are biased (they 
came from the same direction). Well, a double observation will give an 
orbit ( and a real velocity).

Clear skies!

Paco Ocaña
Madrid, Spain