Question
A type of orbit described by this word is exemplified by irregular satellites like Triton and Phoebe post-capture. For 10 points each:
[10m] Name this word that also describes the aspect of the rotation of Venus that causes its solar days to be shorter than its sidereal (“sy-DEER-ee-al”) days.
ANSWER: retrograde (No, Mercury is not currently in retrograde.)
[10e] Prior to its capture by this eighth planet from the Sun, Triton likely originated in the Kuiper Belt, which contains objects that are distinguished as “trans” this planet.
ANSWER: Neptune [accept trans-Neptunian objects] (All Kuiper Belt objects are trans-Neptunian objects.)
[10h] Triton’s capture may have occurred during an instance of this general process. This process is central to the Nice model, in which the giant planets exited their initial compact configuration via this process.
ANSWER: planetary migration
<Kevin Thomas, Science - Astronomy> ~23831~ <Editor: David Bass>
Data
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2024 PACE NSC | 06/08/2024 | Y | 36 | 17.50 | 100% | 67% | 8% |