Anyone else catch the double transit this morning?
Posted 03 October 2013 - 01:29 PM
Good thing the clouds finally drifted enough to obscure my view of Jupiter. I didn't realize just how long I had been outside observing this double transit treat. I had to rush through my morning routine to try to make it to work on time.
So, was anyone else lucky enough to catch this?
Posted 03 October 2013 - 08:55 PM
I have never seen a moon transit that was that dark before. Usually I "lose" the moons after shortly after they move past the limb.
I'm not sure if I ever saw a Ganymede transit before. Is it always that noticeable as it traverses the disk of Jupiter?
I did not notice that Ganymede was over Oval BA, but I did think that the shape of the transiting Ganymede was not quite circular, so perhaps I was seeing some detail of Oval BA superimposed next to Ganymede?
By the way, I also saw a prominent white spot (almost looked like a bubble to me) in the equatorial band. From looking at the image you linked to, I believe it was the large festoon/plume NE of the shadow.
Posted 04 October 2013 - 12:48 PM
In the transits I have observed the moons look like bright disks and the shadows are inky black. This is the first time I have observed a moon that looked a fuzzy pale grey.
I also noticed the feature right next to Ganymede, which later I identified as the Oval BA from the pic. Howver, I didn't see the white spot in my scope, but doubt I would have in a 70mm achro.
It was a great way to start the day, observing something I had not seen before.