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Comments: Imaged Saturn Sept 25th in good seeing. The structure within the NPR is well seen, still as concentric brighter and darker thin bands. A chain of spots are resolved along the Southern edge of the NPR at all wavelengths. The most prominent; a bright spot leading a dark spot trailed by another bright spot. I measure the leading bright spot to be at approx Lat+64.3 L3 160.4 dark spot at Lat+64 L3 166.5 trailing bright spot Lat+64.5 L3 172.9 Note that the 09:38 IR data was used for the above measurements.
Also note in my first IR for the session a dark spot toward the P limb, the 2010 GWS AV at approx Lat+43 L3 99.1
Both R and RGB data well resolve a bright spot at approx Lat+29.2 L3 147.2
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Observation 1 |
|
Feature(s) |
N/A |
Filter(s) |
685nmIR |
Date |
2019-09-25 09:21:00 |
Julian day |
2458751.8895833334 |
System I |
257.82507° |
System II |
N/A |
System III |
159.6718° |
Illumination |
99.8% |
Phase angle |
5.599999904632568° |
Solar longitude |
355.6° |
Eq. diameter |
16.92″ |
Derotation |
0.0 min |