Jupiter and Io Transit - 19 Jan 2011

[DarkerSky]

Managed to grab an early evening Jupiter - my first view of the planet in over a month. The SEB revival has really come on apace. Some superb detail seen in the belt - more detail than was obvious in the NEB. Mind you, the seeing was pretty erratic. Moments of II and down to IV at times with cloud coming and going.

Sketch from 12" x192 magnification and Neodymimum filter

18.20 UT

System I - 173 degrees

System II - 313 degrees

Io's shadow is the main dot feature on the disc near the CM. It just so happens that the SEB's most interesting feature was seen next to it: a gathered mass of darker material that abruptly transfers to the southern edge of the SEB, leaving a much lighter area next to it. A darker area was seen centrally in the SEB further along to the following edge.

All in all a very exciting observation!

[perrin6]

Lovely sketch. Funny how divided the SEB has become

[Mark at Beaufort]

Nice sketch Seb - I also decided to view the transit with my 4" APO frac last evening. As you say seeing was erratic but it was good to view an object even though the Moon was full.

Mark

[chrisrnuttall]

Great sketch Seb, lots of detail there. erratic conditions seem to be the order of the day at the moment!

[dweller25]

That's a great drawing Seb and the timing makes for an interesting collection of features.

[WayneR]

Great sketch Seb, especially under the conditions you had! Thanks for posting.