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Object Saturn
Image type image
File size 624.0 KB
URL s2022-10-21_10-42_685nmIR_tba.gif
Observer Trevor Barry
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Comments: Oct 21st saw a break in the clouds that coincided with a predicted 11:19 UTC CM transit of AV. I had set up about 1 1/2 hrs early and as the seeing was surprisingly good started capturing data. This session covers 2 hrs 13 min of Saturn rotation. Of course I framed my captures to have a 9 min IR centered on the CM transit with IR data sets centered 30 min either side. As it happened the seeing was better prior than post and I also have AV resolved at 10:12 along with 10:49 and 11:19 but much fainter at 11:49. Have also included an IR polar projection from the 11:19 UTC data with AV at the CM along with an animation of the all IR polar projection resolving AV. My ephemeris predicted the CM transit at 11:19 UTC with L3 of 182 degrees, I measured AV in my 11:19 UTC data set to be at approx Lat+42.1 L3 181.6, the drift of –0.2696 degrees/day is proving quite reliable. Other detail resolved in these data. 685nm IR resolves a EZ/NEB ripple at approx Lat+14.9 L1 76.4 this is also resolved in R and RGB data. IR also resolves a bright EZ spot at approx Lat+2.4 L1 67.3. R and RGB data resolves a bright mid latitude spot at approx Lat+30.2 L3 132.4 RGB also resolves another mid latitude bright spot at approx Lat+30.2 L3 195.6

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Observation 1
Feature(s) N/A
Filter(s) 685nmIR
Date 2022-10-21 10:42:00
Julian day 2459873.9458333333
System I 55.81694°
System II N/A
System III 162.07895°
Illumination 99.8%
Phase angle 5.400000095367432°
Solar longitude 30.0°
Eq. diameter 17.5″
Derotation 0.0 min