Mon 8th thru Tues 9th Dec 2025

Three acts on Jupiter’s stage in one night!

  • Monday 8th at 9pm
    Io slips into shadow, Callisto’s shadow centred on Jupiter.
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  • Monday 8th at 10.30pm
    Callisto’s shadow leaves Jupiter as the Great Red Spot appears.
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  • Tuesday 9th at 2.15am
    The Great Red Spot drifts away, and Callisto begins its transit.
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(Times above are shown to help you prepare for observing.)


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