Jupiter Double Shadow Transit

[jjjnettie (Jeanette)]

I was checking the Jupiter Moon Events section of Astronomy 2006 and did you know that there are 3 double shadow transits in the month of August.
Io and Europa are involved in all of them.

August 14th - egress 6.20pm and 7.10pm
" " 21st - ingress 6.24pm and 6.57pm
" " 28th - ingress 8.51pm and 9.02pm

I know it's 3 months away, but I can't wait.
Here's hoping for clear skies for at least one of those nights.

[iceman (Mike)]

Thanks for the heads-up! Jupiter will be well and truly in the west in August.. I'm not likely to get many chances soon..

[jjjnettie (Jeanette)]

I won't be able to catch the one on the 28th unless I can move mountains.

[[1ponders] (Paul)]

Thanks for the heads up Jeanette. That must be getting near the end of the Jupiter season as well by then.


Here are a few more details from Jupiter 2. I've noticed over the past couple of weeks that J2s accuracy can be out by up to 5 min at times compare to other ephemeris/es/i?;

14th All times PM
GRS transit 4:41
Europe passage starts 1:18 Egress 3:46
Io passage starts 3:49 Egress 5:59
Europa Shadow starts 3:58 Egress 6:18
Io shadow starts 5:03 Egress 7:13

21st All times PM
GRS Transit 5:30
Euprope passage starts 3:58 Egress 6:28
Io passage starts 5:4 Egress 7:55
Europe Shadow starts 6:34 Egress 8:54
Io shadow starts 6:58 Egress 9:08

28th All times PM
GRS Transit 6:19
Europe passage starts 6:41 Egress 9:11
Io passage starts 7:42 Egress 9:53
Europe shadow starts 9:09 Egress 11:31
Io shadow starts 8:53 Egress 11:03

[jjjnettie (Jeanette)]

For our WA members, there is another double transit on the 4th of September.
First ingress at 8.46pm then at 9.40pm.