Question
Batygin and Brown are co-authors on a 2024 study of 17 objects with this property and low-q orbits. For 10 points each:
[10h] Give this specific term that describes objects whose high inclinations and clustered orbits provide evidence of a 2016 claim by Batygin and Brown. An object has this property if its orbit has a value greater than 30.1 AU for a.
ANSWER: trans-Neptunian [accept trans-Neptunian objects or TNOs] (The lead-in describes "Generation of Low-Inclination, Neptune-Crossing TNOs by Planet Nine." The 2016 claim is the existence of Planet Nine.)
[10m] Certain TNOs are classified based on having values of 2-to-3 or 1-to-2 for this property. Cubewanos ("kyoo-bee-WUN-ohs") lack this property that is possessed by Io and Europa with respect to Ganymede.
ANSWER: orbital resonance [or resonant] (Cubewanos are contrasted with resonant Kuiper Belt objects.)
[10e] The largest observed TNOs have this classification. Following efforts by Brown, Pluto was demoted to this classification in 2006.
ANSWER: dwarf planet [or dwarfs]
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Data
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2025 PACE NSC | 06/07/2025 | Y | 36 | 16.11 | 100% | 47% | 14% |