(meteorobs) Two questions for meteorobs members

[Skywayinc at aol.com]

Thanks to all for their interesting answers!
-- joe r.
 
 
In a message dated 7/28/2010 10:59:20 A.M. Eastern Daylight Time,  
Skywayinc at aol.com writes:
 
QUESTION 1: 

When or who started naming meteors showers by  the  constellation patronym? 
The meteors from  Perseus are  ‘offspring’ or  ‘descendents’ (literally!) 
from there. So they are the  Perseides, or Perseids in English. This was 
the  
practice at least thru  the 20th century but with showers recognized by the 
mid  19th I  should  think one of the early  astronomers back then started 
with  these  names.


QUESTION 2: 


Are the V(infinity) speeds  of meteors corrected for the Earth’s  gravity? 
The speed would be, by the time we see the shooting  star have  a downward 
component of 11km/s due to falling by  gravity. This is in  addition to the 
vector  combination of the orbital motions of the  meteor and Earth. 
How is the gravity  vector treated. Its direction  varies with location of 
the observer  on Earth. Is it by convention  the  vector for the radiant in 
the zenith, parallel to the  meteor-Earth  vectors? 
-- joe rao  
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