Sunday, 3 February 2013

Io casts a shadow.


Last night there was an Io transit, between 20h 48m UT - 22h 48m UT.

Perfect timing, as the skies were cloud free.

With help from my old friend Tal1, I managed the above sketch......

Io was clearly visible, hovering as it did above the South Equatorial belt....

That little Tal1 always makes me smile...... for example:  Io is about the same size as our Moon, plus it's some 430 million miles away at the moment, yet my little Russian scope can see the shadow it casts onto Jupiter's clouds....  !

All done with a 110mm mirror.....!!  :0)

I'm looking forward to capturing the other three Galilean moons.....  

Clear Jupiter Skies

Mark...

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Nearby.. a lone dog howls..

The Full Mackerel Moon will be upon us on Monday,  nearby I can hear a dog practicing its lunar howling! Up above, the slow moving clouds...