Titan Eclipse events not accurate? #3727
Labels
bug
Something likely wrong in the code
importance: medium
A bit annoying, minor miscalculation, but no crash
state: confirmed
A developer can reproduce the issue
Projects
Hi, have I found a bug?
Expected Behaviour
Start and end of Titan phenomena should be in line with prediction e.g. by the IMCCE https://ssp.imcce.fr/forms/satellites-events
Actual Behaviour
Shadow events are indeed accurate when compared to IMCCE prdictions, eclipses are not. E.g., for the Titan eclipse of 27.10.2024, IMCCE (with JPL ephemeris) predicts 20:51 UT Eclipse disappear (start) and 21:44 UT Eclipse reappear (start). Stellarium's simulation is way off.
However, IMCCE predicts a shadow transit of Titan on Saturn for the 20.11.2024 between 19:38 and 22:11 UT, which fits perfectly to Stellarium.
Same with all other eclipses/shadow transits by Titan in 2024/25. Did not check other moons.
Steps to reproduce
System
regards,
Jan
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