Jupiter 22-09-11

[John]

The skies stayed clear here for a couple of hours tonight so I decided to spend that time observing Jupiter as carefully as I could. To help that process I decided to make a rough sketch of what I could see. During the periods of good seeing I was getting some nice glimpses of some of the lower contrast features and I've tried the capture the relative brightnesses and general shape / position of the features - it's tricky though, as experienced sketchers no doubt know

Anyway for what it's worth here is a scan of my sketch - I've lost the "N" for north during the scanning . The scope was my Skywatcher ED120 refractor and the magnification was 150x provided by my Ethos 6mm eyepiece:

[dweller25]

Nice sketch John, particularly as Jupiter was fairly low.

[cotterless45]

Nice, my poor sketch from October a year ago shows much more detail than this year, perhaps we've not had such good seeing.

[bluemac]

That looks very similar indeed to what I saw last night of Jupiter, good job!

[John]

Thanks for the comments folks

Nice, my poor sketch from October a year ago shows much more detail than this year, perhaps we've not had such good seeing.

I recall there were more features in the north equatorial belt last year, including a nice white spot which lingered for some time. The SEB was virtually invisible for much of that opposition though - it's nice to have it back, despite the fact that it makes the Great Red Spot a little less easy to spot this year