Jovian double shadow transit

Tonight offers a good opportunity to observe a double shadow transit on Jupiter. The shadows of Io and Ganymede will both be on the disk of the planet from 22:21 on March 16 to 00:37 on March 17. Io itself will also be on the disk until 23:22 but will be much harder to see than the shadows. The Red Spot is on the other side of the planet during this event.

Full details are in the Handbook on page 65.