Re: Magnitude estimates on Heavens-Above

From: Jonathan T Wojack (
Date: Mon Apr 23 2001 - 13:25:06 PDT

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    > Now if you are _constantly_ experiencing differences like these you
    > may want to be sure of the coordinates you are using and/or the 
    > offset
    > from the database position from H-A. I just changed the site I was 
    > using
    > for my predictions and it did make a noticable difference. 
    That's what I was just about to say - if the magnitudes being predicted
    are wrong, then maybe you've input the wrong location.  I recommend just
    choosing your town from the on-line list.  My development (neighborhood;
    population can't be anymore than a 1000 people.  In case you think I have
    very little light pollution because of the small size, consider that I
    live in a dense population area - which has a population of ~200,000.  A
    city centered at about 50km north has a population of more than 2 million
    humans) is listed!  So even small towns will be on there.  And at least
    for me, it's extremely accurate.
    Jonathan T. Wojack       
    39.706d N   75.683d W            
    4 hours behind UT (-4)
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    This archive was generated by hypermail 2b29 : Mon Apr 23 2001 - 13:28:34 PDT