Re: Flyby of Asteroid 2002 NY40

From: Willie Koorts (wpk@saao.ac.za)
Date: Mon Aug 19 2002 - 04:38:17 EDT

  • Next message: paul: "8305PG 19aug 11h UT"

    On Fri, 16 Aug 2002, Robert G Fenske Jr wrote:
    
    >
    > 	Those of you who hunt fainter satellites with telescopes may be
    > interested in this upcoming passage of a satellite of the Sun.
    
    Hi
    
    Before I get flamed down for being OT, I'll be brief.
    
    I managed to observe this "satellite" on Saturday night from my backyard
    using my home-made 9-inch Newtonian on a dobsonian base fitted with crude
    setting circles (not the split-ring equatorial as shown on my site since
    this mount don't have circles).  The asteroid was quite a bugger to find
    as it was predicted to be ~10 mag and moving at ~2arcmin/min for me (about
    15 times slower than the hour hand of a clock if my sums are correct).
    
    With the help my old ASTRO program to point the mount and a planetarium
    program to show me what to expect in the eyepiece, I first spotted the
    asteroid as it passed between a "constellation" of three 7 mag stars and
    eventually followed it for over 2 hours.
    
    I lost it a few times as it passed through sparse fields, also since it
    was not quite on the same path as the elements predicted - I saw it on a
    parallel track about 12 arcmin south of the predicted track.  I judged it
    somewhere between 9 and 9.5 mag.
    
    Regards
    Willie
                           Willie Koorts   wpk@saao.ac.za
    
           Cape Town,  Observatory   33d 56' 03"S   18d 28' 36"E   GMT + 2h
           Wellington, South Africa  33d 38' 56"S   19d 00' 52"E   GMT + 2h
    
           For - Amateur Astronomy - Telescope Making - Satellite Tracking -
                       Visit  ....   http://www.saao.ac.za/~wpk/
    
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