{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.dwarf-planet","code":"thing-q2199","url":"https://ver.cy/models/thing/q2199/","name":"dwarf planet","alternateNames":["plutoid"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.SPC"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A celestial body that orbits the Sun, has enough mass to be nearly round, but has not cleared its orbital neighbourhood and is not a satellite; recognised examples include Pluto, Eris, Ceres, Haumea and Makemake.","purpose":"Let an agent handle dwarf planets by name, orbit, size and classification status, with IAU definitions and sourced data.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Round from self-gravity","Has not cleared its orbit","Orbits the Sun directly","Many candidates remain unconfirmed"],"structure":{"bundles":[{"id":"classification","name":"Classification","description":"Is it a dwarf planet.","layers":[{"id":"criteria","name":"Criteria","description":"IAU definition.","findings":[{"id":"criteria-finding","name":"Criteria","description":"Criteria.","questions":[{"text":"Does the body meet the IAU criteria?","kind":"boundary"},{"text":"Is it officially recognised or a candidate?","kind":"provenance"}]}]},{"id":"debate","name":"Debate","description":"Planet status.","findings":[{"id":"debate-finding","name":"Debate","description":"Debate.","questions":[{"text":"What are the arguments about the definition?","kind":"provenance"},{"text":"Is the account balanced?","kind":"boundary"}]}]}]},{"id":"body","name":"Body","description":"Properties.","layers":[{"id":"size","name":"Size","description":"Diameter and mass.","findings":[{"id":"size-finding","name":"Size","description":"Size and mass.","questions":[{"text":"What are its diameter and mass?","kind":"measurement"},{"text":"From which mission or study?","kind":"provenance"}]}]},{"id":"surface","name":"Surface","description":"Composition.","findings":[{"id":"surface-finding","name":"Surface","description":"Surface.","questions":[{"text":"What is its surface made of?","kind":"measurement"},{"text":"Does it have an atmosphere?","kind":"definition"}]}]}]},{"id":"orbit","name":"Orbit","description":"Where it moves.","layers":[{"id":"elements","name":"Elements","description":"Orbit data.","findings":[{"id":"elements-finding","name":"Elements","description":"Orbital elements.","questions":[{"text":"What are its orbital period and distance?","kind":"measurement"},{"text":"From which ephemeris?","kind":"provenance"}]}]},{"id":"moons","name":"Moons","description":"Satellites.","findings":[{"id":"moons-finding","name":"Moons","description":"Moons.","questions":[{"text":"Does it have moons?","kind":"provenance"},{"text":"Which ones?","kind":"provenance"}]}]}]},{"id":"exploration","name":"Exploration","description":"Missions.","layers":[{"id":"missions","name":"Missions","description":"Spacecraft.","findings":[{"id":"missions-finding","name":"Missions","description":"Missions.","questions":[{"text":"Which spacecraft have visited it?","kind":"provenance"},{"text":"What did they find?","kind":"provenance"}]}]},{"id":"observing","name":"Observing","description":"From Earth.","findings":[{"id":"observing-finding","name":"Observing","description":"Observing.","questions":[{"text":"Can amateurs observe it?","kind":"boundary"},{"text":"With what equipment?","kind":"definition"}]}]}]}]},"agentConduct":{"may":["Report dwarf planets and their properties from official astronomical sources.","Explain how dwarf planets differ from planets under the official definition."],"mustNot":["Present a body as a recognised dwarf planet when it is not.","Sell naming rights to a celestial body as if they were official.","Misrepresent the classification debate as settled beyond what the official definition says."],"requiresHuman":["Publishing names or classifications of newly found bodies."]},"ethics":{"considerations":["Public understanding of science suffers when classifications are misstated."],"affectedParties":["Students and the public","Astronomers"]},"owners":{"steward":"Nobody owns them; the international astronomical union governs names and classification.","roles":[],"masterSystems":["Minor planet and small-body catalogues"]},"relations":[{"target":"Q1022867","type":"parent","note":"registry parent class"},{"target":"Q400144","type":"parent","note":"registry parent class"},{"target":"minor planet and planetary-mass object","type":"related","note":"category"},{"target":"IAU 2006 resolution","type":"related","note":"standard"},{"target":"Sun","type":"related","note":"primary"},{"target":"planet","type":"related","note":"classification"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.dwarf-planet","Wikidata: Q2199 (https://www.wikidata.org/wiki/Q2199)","minor planet number: MPC number Minor Planet Center"]},"properties":{"applicability":"required","items":["Pluto diameter: about 2377 km","Ceres diameter: about 940 km"]},"recognition":{"applicability":"required","items":["IAU-recognised names","Minor planet numbers such as 134340 Pluto","Plutoids are trans-Neptunian dwarf planets","Small round worlds, icy or rocky."]},"capabilities":{"applicability":"required","items":["classify bodies under IAU rules","study orbits and physical properties","follow missions such as New Horizons and Dawn","observe the brighter ones with telescopes"]},"hazards":{"applicability":"required","items":["Stating candidates as confirmed","Partisan framing of the Pluto debate"]},"interfaces":{"applicability":"required","items":["IAU Resolution B5 (2006)"]},"context":{"applicability":"required","items":["A classification in planetary science.","plutoids (trans-Neptunian dwarf planets)","Ceres in the asteroid belt","candidate dwarf planets"]}},"sources":[{"title":"Wikidata item Q2199: dwarf planet","url":"https://www.wikidata.org/wiki/Q2199","note":"identity and sense of the item"},{"title":"Wikipedia: Dwarf planet","url":"https://en.wikipedia.org/wiki/Dwarf_planet","note":"general description of the item"}],"openQuestions":["Should candidates be separate entries?","How should classification debates be represented?","How should mission data be linked?"],"resources":{"spec":"/models/things/publications/thing-q2199/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q2199/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T07:03:19Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:51:57+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}