Io and Shadow Transit

The late evening of Thursday 12 May 2005 was fantastic for viewing and imaging Jupiter. Within the relatively short time period of 4 hours you could see the Great Red Spot, Europa's shadow transiting the surface, Io and its shadow transiting the surface. The image shows the Great Red Spot disappearing over the western (preceding) edge, Io emerging from transit (western edge, NEB), Io shadow mid-transit (NEB), Europa to north-west. Note that south is up and west is left.