{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T10:43:20Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 1, "engine": "claude", "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-05T16:30:00Z", "ingestedAt": "2026-10-05T13:27:17+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] }, "revisions": [ { "at": "2026-10-06T22:30:29+00:00", "engine": "codex", "fields": [ "definition" ], "answering_review": "362130203ea5d10e67af3e8802be1c94979cba0d560f0196a1c631a7f650db49" } ], "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:25+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q11416914", "registryId": "vr.tr.periodic-comet", "name": "periodic comet", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.SPC" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q11416914/", "model": { "registry_id": "vr.tr.periodic-comet", "name": "periodic comet", "purpose": "Let an agent describe periodic comets by designation, orbit, return dates, brightness predictions and observation, with sourced ephemerides.", "definition": "A comet with a stable orbit and an orbital period of less than 200 years, designated with a P; groups include Jupiter-family, Encke-type, Halley-type and Chiron-type comets.", "what_it_is_for": "Solar system science and public observing.", "affordances": [ "look up designations and periods", "find next perihelion and visibility", "distinguish comet families", "report observations to databases" ], "distinguishing_features": [ "Returns regularly", "Numbered P designations", "Brightness is hard to predict", "Often perturbed by Jupiter" ], "appearance": "A fuzzy coma with or without a tail, seen through binoculars or telescopes; rarely naked-eye.", "visual_identification": [ "Designations such as 1P/Halley or 2P/Encke", "Coma and tail near perihelion", "Long-period comets use C/ designations" ], "physical_properties": [ { "quantity": "orbital period", "typical_range": "under 200", "unit": "years", "note": "definition" } ], "families_and_kinds": [ "Jupiter-family comets", "Encke-type comets", "Halley-type comets", "Chiron-type comets", "quasi-Hilda comets" ], "related_models": [ { "relation": "is a kind of", "target": "comet", "why": "category" }, { "relation": "is catalogued by", "target": "Minor Planet Center", "why": "authority" }, { "relation": "includes", "target": "Halley's Comet", "why": "example" }, { "relation": "is contrasted with", "target": "long-period comet", "why": "other class" } ], "identifiers": [ { "scheme": "MPC comet designation", "value_or_pattern": "nP/Name", "note": "periodic comets" } ], "standards_and_regulation": [ "IAU comet naming rules" ], "failure_modes_and_hazards": [ "Overpromising brightness", "Using outdated ephemerides" ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Report orbits, designations and apparitions of periodic comets from official catalogues.", "Help observers plan sightings with published ephemerides." ], "must_not": [ "Spread false claims that a comet will strike Earth or cause disasters.", "Report a new comet discovery before it is confirmed by the designating body.", "Assign or alter official comet designations." ], "requires_human": [ "Announcing a possible discovery or close approach to the public." ] }, "ethics": { "considerations": [ "Comet scares have caused panic and been used for fraud." ], "affected_parties": [ "The public", "Amateur and professional astronomers" ] }, "owners": { "steward": "Nobody owns them; the international astronomical bodies assign designations and keep orbit records.", "master_systems": [ "Minor Planet Center orbit databases" ] } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q11416914: periodic comet", "url": "https://www.wikidata.org/wiki/Q11416914", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Periodic comet", "url": "https://en.wikipedia.org/wiki/Periodic_comet", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "identity", "name": "Identity", "description": "Which comet.", "rationale": "Designations identify.", "layers": [ { "id": "designation", "name": "Designation", "description": "Name and number.", "findings": [ { "id": "designation-finding", "name": "Designation", "description": "Designation.", "questions": [ { "text": "What is the comet designation and discoverer?", "kind": "provenance" }, { "text": "Which family does it belong to?", "kind": "definition" } ] } ] }, { "id": "orbit", "name": "Orbit", "description": "Elements.", "findings": [ { "id": "orbit-finding", "name": "Orbit", "description": "Orbit.", "questions": [ { "text": "What are its period and perihelion distance?", "kind": "measurement" }, { "text": "From which orbit solution?", "kind": "provenance" } ] } ] } ] }, { "id": "return", "name": "Return", "description": "Next apparition.", "rationale": "Returns can be predicted.", "layers": [ { "id": "perihelion", "name": "Perihelion", "description": "Date.", "findings": [ { "id": "perihelion-finding", "name": "Perihelion", "description": "Next perihelion.", "questions": [ { "text": "When is the next perihelion?", "kind": "provenance" }, { "text": "How reliable is the prediction?", "kind": "boundary" } ] } ] }, { "id": "brightness", "name": "Brightness", "description": "Magnitude.", "findings": [ { "id": "brightness-finding", "name": "Brightness", "description": "Brightness forecast.", "questions": [ { "text": "What brightness is forecast, and how uncertain is it?", "kind": "measurement" }, { "text": "Will it need binoculars or a telescope?", "kind": "boundary" } ] } ] } ] }, { "id": "observing", "name": "Observing", "description": "Seeing it.", "rationale": "Observers need guidance.", "layers": [ { "id": "where", "name": "Where", "description": "Sky position.", "findings": [ { "id": "where-finding", "name": "Where", "description": "Sky position.", "questions": [ { "text": "Where in the sky is it on this date?", "kind": "provenance" }, { "text": "Which ephemeris service shows it?", "kind": "provenance" } ] } ] }, { "id": "report", "name": "Report", "description": "Observations.", "findings": [ { "id": "report-finding", "name": "Report", "description": "Reporting observations.", "questions": [ { "text": "How can observations or images be submitted?", "kind": "action" }, { "text": "Which organisation collects them?", "kind": "provenance" } ] } ] } ] }, { "id": "science", "name": "Science", "description": "Physics.", "rationale": "Comets reveal early solar system.", "layers": [ { "id": "composition", "name": "Composition", "description": "Ices and dust.", "findings": [ { "id": "composition-finding", "name": "Composition", "description": "Composition.", "questions": [ { "text": "What is known about its composition?", "kind": "provenance" }, { "text": "Has a spacecraft visited it?", "kind": "provenance" } ] } ] }, { "id": "showers", "name": "Meteor showers", "description": "Debris.", "findings": [ { "id": "showers-finding", "name": "Meteor showers", "description": "Associated meteor showers.", "questions": [ { "text": "Is it the parent of a meteor shower?", "kind": "provenance" }, { "text": "When does the shower peak?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should comet families be separate entries?", "How should ephemerides be linked?", "How should brightness forecasts be qualified?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }