No GRS at the moment

[mdstuart]

Just checked and I cannot see the red spot at the moment. When is it next visible anyone?

Mark

[mdstuart]

Now I can see two black spots on the planet and a moon just either side of the disk. It is 00.10am on the 20th. Is this two shadows I can see or a shadow and moon....

I will go out again in a minute...

Mark

[mdstuart]

Its 00:30 and the moon to the right is now in front/behind the planet. The two "shadows" are making there way accross the disk. The fainter leading one is nearly half way accross and the darker one which is lower on the disk (just above the darkest cloud band) is about one third of the way accross. The leading shadow seems to be moving fastest IO ?.

Mark

[mdstuart]

Ok had a look on stellarium. Its a double shadow. Ganymeade in front and europa behind. Cool...well there is something to tell your kids about.

Just no red spot!

Mark

[MartinB]

Ganymede is the moon itself, the darker spot behind is the shadow of europa and europa itself is now just starting to transit the disk. Over on the other side is Io which is about to pass behind jupiter.