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Old 12-05-2018, 11:35 PM
Tropo-Bob (Bob)
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Join Date: Sep 2013
Location: Cairns
Posts: 1,584
Io occultation

Io
I viewed the occultation of Io this evening with my Vixen ED81 using 90x.
Using a lower magnification 33x, I had difficulty keeping sight of Io some 5 minutes before the occultation was completed, so switched to a more appropriate magnification.

It disappeared completely from view at the predicted time (22.57) and was located a fraction to the south of the South Equatorial Belt.

So when Io returns for its transit tomorrow evening, I assume that when it begins crossing Jupiter's limb, if will be just to the north of the North Equatorial Belt.

From what I have noticed in the last few days, shadows of Jupiter's moons appear on the disc a little to the south of the Moon in transit. Thus, if I have this right, Io's shadow during the tomorrow transit will probably be on the northern edge of the North Equatorial Belt. I will be looking to see if I have this right (weather permitting).

Future events:
Tomorrow (13/5): Io has transit and shadow events from 20.16 to 22.32.
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