Re: Standard Magnitude Calculation

From: Ralph McConahy (rwmcconahy4@comcast.net)
Date: Wed Oct 15 2008 - 00:27:26 UTC

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    Bjoern Gimle wrote:
    
    >> so it confirms what I believed - SkyMap uses 90 d for STD MAG definition
    
    Just to confirm that, Rob's sky66.new file reads:
    
      The "standard" visual magnitude is an approximation of
      each satellite's expected visual magnitude when seen at
      1000-km range with a 90-degree phase angle (angle from 
      observer to satellite to sun).
    
    [The same text appears in previous versions sky63, sky64, & sky65.new] 
    
    
      Ralph McConahy
      38.3306N, 75.6970W, -25m (WGS84)
    
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