Wednesday, August 12, 2009

Near Europa Occultation by Ganymede

It's Perseids time!
It promised to be a thrilling night when one thinks that at the same time there was a Galillean event taking place: Ganymede was about to occult Europa, a first time ephemerid for me.
Scope set up and cooled, it was time to wait for the occasion.
Well, do you know a certain Mr. Murphy? No clouds, but seeing could be a lot better. The moons looked like they were dancing a celestial waltz. Focusing was so hard it turned the all experience into a nightmare.
I was able to snap this picture, a few minutes before the occultation took place.
We can see Ganymede, Europa and Io's shadow on Jupiter, whereas the GRS is about to "rise".
Move your mouse over image for labelling.

C11 @f/10 + DMK21AF.AS + IR Astronomik IIb (C)
exp: 1/120; 60fps
Leiria, Aug 12th @2h09m UT

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Oh, by the way, I did watch 3 amazing fireworks before I decided to call it a night.

(c) JC - Ago/09

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