Ganymede transit - was there a cast shadow too?

glennhirsch@No-Spam
Date: Tue Dec 25 2001 - 17:42:42 MST

  • Next message: P T Chambers: "Re: Ganymede transit - was there a cast shadow too?"

    Last night @ 1230am in SF using an 8" dobs with a tak le 7mm eypiece,
    I spied Jupiter through a brief cloud hole -- I had a surprisingly steady
    view @ 175x showing Ganymede's tiny black disk just above the red
    spot.

     

    I thought I also saw the moon's cast shadow -- did I? Is a cast shadow
    visible during a transit in addition to a moon's silhouette?

    Glenn Hirsch

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