Bright ISS and Shuttle through clouds

From: Robert Holdsworth (
Date: Fri May 21 2010 - 18:49:07 UTC

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    At 1757 UTC we had an overhead  shadow exit pass of the ISS/STS complex.  It 
    was due to pass close to Jupiter (in front of it for some locations not far 
    from here!)
    Conditions were very poor, I saw Jupiter very briefly but it disappeared 
    into cloud before the pass.
    The complex was easily visible 1x for a few second at and just after 
    culmination, despite nothing else being visible at all.  Calsky 
    redicted  -4.5 mag but to get through the cloud so easily I suspect it was 
    much brighter, possibly even -6.
    It had the appearance of two flares but in the conditions it was impossible 
    to tell whether the variation was because of cloud or flaring.
    I am pleased to report that through Facebook our local observatory is 
    continuing to encourage observation of the ISS, and I have been adding 
    further details.  Hopefully at least some will have their interest aroused 
    to look at further objects, I will certainly do all I can to encourage that! 
    Now to wait for a suitable solar or lunar transit and ask nicely about using 
    their telescope maybe :-)
    Robert Holdsworth
    New Zealand
    Seesat-l mailing list

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