Saturn Image 2019/06/10(UT)
Trevor Barry
T.Barry
| Trevor Barry |
Have more good data from June 10th. The 32 minutes it took to capture the first complete IR, R, G, B, Ch4 data set was all in good seeing, nearly as good as on June 7th. The seeing then noticeable dropped off, only a little but enough to make it much harder to discriminate between individual active spots within the polar storm. There is a very condensed bright spot peeking out from under the shadow of the rings at approx Lat-7.5 L1 126.2 There is also a bright ripple along the edge of the EZ impinging into the NEB resolved in IR, R & RGB at approx Lat+15.1 L3 115.6 Of great interest, this same feature is resolved in the Ch4 data, while the bright ripple is seen on the edge of the EZ in IR, R & RGB the Ch4 reveals a bright spot which is mostly within the EZ with the edge of it being the ripple I see impinging into the NEB. The spot in the Ch4 data I measure to be at approx Lat+10.8 L3 115.5. Looking back at my June 7th data I note that the Ch4 data set was captured after the EZ ripple had crossed the P limb so it didn't show up in that Ch4 data set. I also see a small more diffuse bright spot in the first R and RGB data set, strangely not visible in IR, I measure it to be at approx Lat+29.3 L3 15.8 Structure within the polar storm complex is visible and seen to move in both IR and R animations. I have not measured the polar detail as the drop off in the quality of the seeing makes blinking the 1st good set of data with the 2nd set of data inconclusive.
[Trevor Barry:Broken Hill:Australia]
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2019/06/11
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