Re: Station not a silhouette

From: Robert Reeves (
Date: Mon Dec 30 2002 - 23:59:45 EST

  • Next message: Vitek, Antonin: "Re: Station not a silhouette"

    > Some people stated that Venus is capable of making shadows.
    > Assuming this is true, and ISS is as bright as Venus(mag -4 on some
    > occasions-and probably that bright when it is nearing completion), then we
    > must be able to see changing shadows from ISS).
    > Greetings,
    > Tristan Cools
    Venus does indeed cast a shadow at a dark site.  It routinely illuminates
    the wall of my observatory when Venus is shining through the dome slot.  I
    have also seen shadows on the observatory floor from a bright flare by the
    HST, so I expect the ISS will eventually also be quite illuminating.  I have
    also seen a shadow from an unforcast Iridium that flashed me at my
    observatory.  I was outside tending my meteor patrol cameras when it flared
    behind me.  The rise in brightness made me think an automobile was coming
    around the corner of the road leading up to the observatory.  I was
    irritated that someone would dare drive up with lights blazing and I was
    getting ready to yell at them when I saw it was really an Iridium flare.  My
    circumpolar camera captured the event and it can be seen at
    Robert Reeves            
    520 Rittiman Rd.         
    San Antonio, Texas 78209    210-828-9036
    USA                                     29.484  98.440  200 meters
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