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Re: (meteorobs) observed magnitude



At the premise the light radiation is the same to different direction,the
observed magnitude should be added for the observer the meteor headed
to.But in biology, the static light arouses less stimulation to eyes or
visual cotex than the moving light, for the later stimulate more retina
neural cell. So the judgement of the mag. is different for the two
observers,but they should be right with the mark of a certain ralative
velocity.

This is what i guess. Maybe it is suggested.


At 09:45 ÏÂÎç 99-12-9 -0600, you wrote:
>   A hypothetical example: Two people see the same  meteor from different
>locations. The first observer sees the meteor near the  radiant. Its burn
>path covers a mere 7 or 8 degrees. The second sees it cover 45  degrees
>during the same time span.  both observers perceive the same  magnitude or
>will the first observer consider it to be brighter?   Tom  
 

---
   
Best regards

Yuwei  Fan
===============================
   Lab for Biomaterials                                     
   Dept of Mat Sci & Eng                                
   Tsinghua Univ                                             
   Beijing 100084                                              
   P. R. China                                                      

  Tel: 86-10-6278 2966(O)                                 
        86-10-6277 4138(dorm)  
 Email: ywfan@mail.cic.tsinghuadot edu.cn     
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