Got a telescope? Watch Io and its shadow pass across Jupiter’s face tonight.

March 9, 2015 | By | 1 Comment
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(Posted 9 March 2015)

Moon and Jupiter finder chart. Chart prepared for 8 pm AEST / 9 pm AEDT on Tuesday 3 March 2015 for the Gold Coast, Queensland (but will be also useful for elsewhere in Eastern Australia). Chart prepared using the highly recommended Sky Safari Pro tablet app. Used with permission.

Jupiter and Io finder chart. Chart prepared for 9:30 pm AEST / 10:30 pm AEDT on Monday 9 March 2015 for the Gold Coast, Queensland (but will be also useful for elsewhere in Eastern Australia). Chart prepared using the highly recommended Sky Safari Pro tablet app. Used with permission.

The shadow of Jupiter’s largest moons Io, will cross the face of Jupiter tonight between approximately 8:30 pm AEST and 10:30 pm AEST (9:30 pm AEDT to 11:30 pm AEDT). While Jupiter can easily be seen with the unaided eye (look for the brilliant star above the Eastern horizon at the end of evening twilight), you will need a high powered telescope to be able to see Io’s shadow on Jupiter’s cloud tops.

Notice I didn’t mention looking for Io itself. I have yet to have any success doing that – even using my telescope equipped with a Barlow lens to increase the effective magnification of the telescope. I could see the tiny black disc of Io’s shadow though.

 

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