Re: AO-40 magnitude

From: Jonathan T Wojack (tlj18@juno.com)
Date: Thu May 17 2001 - 15:37:59 PDT

  • Next message: Dale Ireland: "RE: AO-40 magnitude"

    > A check of the data from WSRN suggests a 2 sq metre object has
    > a magnitude at 1000 miles of mag 7.0 or so, so at a rangle of 
    > 60,000Km
    > it would be about 8.5 mags fainter, putting it at mag 15.5
    > Rather hard visually, but fairly easy for the amatuer observers who 
    > usually
    > hunt asteroids, several of whom demonstrably reach mag 19.0.
    
    I understand where you get the 8.5 mag drop for the increased range, but
    does anyone know how to compute the theoretical magnitude when the RCS is
    NOT equivalent to ~ 2m^2?
    
    BTW, what is "WSRN"?
    
    Thanks!
    
    ------------------------------
    Jonathan T. Wojack                 tlj18@juno.com
    39.706d N   75.683d W            
    
    4 hours behind UT (-4)
    
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