Viewing Titan’s shadow on Saturn is only possible every 15-years consigning with Saturn’s tilt when the rings are lined up edge on. Now that Saturn is becoming an evening planet (rising around midnight 7/15), it is time to catch Titan’s shadow. Titan orbits Saturn once every 16 days. Here is a table of crossing events.
| Date | Start | Mid-transit | End |
|---|---|---|---|
| 7/18 | 12:00 am | 2:44 am | 5:05 am |
| 8/2-3 | 11:25 pm (8/2) | 1:52 am | 4:04 am |
| 8/18-19 | 10:52 pm (8/18) | 1:01 am | 3:00 am |
| 9/3-4 | 10:25 pm (9/3) | 12:09 am | 1:50 am |
| 9/19-20 | 10:09 pm (9/19) | 11:20 pm (9/19) | 12:34 am |
| 10/5 | 10:32 pm* |
*Full shadow on disk only at mid-transit
Ref: https://skyandtelescope.org/astronomy-news/observing-news/titan-shadow-transit-season-underway/
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