Home Search data Upload image News Reports Users Publications External links Help

Other services: Planetmap | Junocam | Jovian impacts | Venus BepiColombo Flyby

Viewing selected image

Object Saturn
Image type image
File size 96.0 KB
URL s2021-09-29_10-40_polar_tba.png
Observer Trevor Barry
[More by this user]

Comments: Imaged Saturn September 29th targeting a CM transit of the 2010 GWS AV. There was a considerable region of unsettled weather approaching form the West and the lightning tracker showed concentrated activity not far from my observatory. Initially the seeing was very bad but it did settle enough for one 9 minute 685nm IR run that was centered 25 minutes past the predicted CM transit. After this data run the flashes of dry lightning, something we often see out here in the outback, made my mind up to disconnect the power from all the electronics in my observatory and to pack up for the night. This data was just good enough to resolve the AV which is approx Lat+41.1 L3 304.8 the predicted L3 was 301 but that ephemeris was framed from April 25th using a drift of -0.5 degrees/day and since then the AV has drifted even further South which has resulted in a further reduction in its Westerly drift.

[Add observation]
Observation 1
Feature(s) N/A
Filter(s) polar
Date 2021-09-29 10:40:00
Julian day 2459486.9444444445
System I 202.2443°
System II N/A
System III 315.35284°
Illumination 99.8%
Phase angle 5.0°
Solar longitude 18.0°
Eq. diameter 17.63″
Derotation 0.0 min