Question
Four linear depressions known as “tiger stripes” on this body’s south pole are thought to indicate the presence of cryovolcanism. For 10 points each:
[10h] Name this most reflective body in the Solar System, with a geometric albedo of 1.38. This body’s 2-to-1 orbital resonance with Dione (“di-OH-nee”) causes it to experience geologic activity from tidal heating.
ANSWER: Enceladus
[10e] Geysers on Enceladus supply some of the material that makes up the E ring of this planet. Enceladus orbits this planet along with the moon Titan.
ANSWER: Saturn
[10m] Enceladus’s resonance with Dione forces its orbit to have a value of about 0.0047 for this parameter. This dimensionless quantity is greater than one for a hyperbolic escape orbit.
ANSWER: orbital eccentricity [accept forced eccentricity]
<Other Science>
Summary
| 2024 ACF Winter at Clemson | 2024-11-16 | Y | 9 | 20.00 | 89% | 89% | 22% |
| 2024 ACF Winter at Clemson | 2024-11-16 | Y | 7 | 15.71 | 100% | 14% | 43% |
| 2024 ACF Winter at Ohio State | 2024-11-16 | Y | 1 | 20.00 | 100% | 100% | 0% |
Data
| Michigan A | Ohio State A (UG) | 0 | 10 | 10 | 20 |