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Comments: Imaged Saturn October 11th 2021 targeting a CM transit of the 2010 GWS AV, seeing was variable with the best of it being good. Have well resolved the AV in the 685nm IR data also resolved in the R data and although quite faint it is also seen in RGB.
I measure the AV to be at approx Lat+41.7 L3 298.7. The 2021 HST OPAL data, as was also the case in 2020, resolved a series of ripples impinging up into the Southern edge of the NNTeB,one such ripple is resolved in these data at approx Lat+47.2 L3 269.7.
The North polar vortex and vertices of the polar hexagon are well resolved in the polar maps, particularly so in RGB data.
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Observation 1 |
|
Feature(s) |
N/A |
Filter(s) |
polar |
Date |
2021-10-11 09:58:00 |
Julian day |
2459498.9152777777 |
System I |
228.51889° |
System II |
N/A |
System III |
300.50467° |
Illumination |
99.8% |
Phase angle |
5.5° |
Solar longitude |
18.4° |
Eq. diameter |
17.29″ |
Derotation |
0.0 min |