{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T04:35:51Z",
    "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": "2026-10-05T13:18:27+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-06T19:52:00+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q523",
    "registryId": "vr.tr.star",
    "name": "star",
    "version": "0.2.0-wave.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.SPC"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q523/",
  "model": {
    "registry_id": "vr.tr.star",
    "name": "star",
    "purpose": "Let an agent describe stars by spectral type, mass, luminosity, distance and evolutionary stage, and identify them across catalogues.",
    "definition": "A luminous sphere of plasma held together by its own gravity, producing energy by nuclear fusion in its core for most of its life.",
    "what_it_is_for": "Understanding the universe, navigation, timekeeping and the origin of chemical elements.",
    "affordances": [
      "observe it, by eye or telescope",
      "classify it, by spectral type and luminosity class",
      "measure it, for distance, mass, temperature and composition",
      "navigate by it, in celestial navigation"
    ],
    "distinguishing_features": [
      "Self-luminous through fusion, unlike planets",
      "Classified on the Hertzsprung-Russell diagram",
      "Evolves through stages from protostar to remnant",
      "The Sun is a star"
    ],
    "appearance": "A point of light in the night sky, twinkling from the ground; colour ranges from blue-white to red.",
    "visual_identification": [
      "Point sources that do not move against each other over a night, unlike planets",
      "Colour indicates temperature",
      "Bright stars have proper names; most have only catalogue numbers"
    ],
    "physical_properties": [
      {
        "quantity": "mass",
        "typical_range": "0.08-150+",
        "unit": "solar masses",
        "note": ""
      },
      {
        "quantity": "surface temperature",
        "typical_range": "2000-50000",
        "unit": "K",
        "note": ""
      },
      {
        "quantity": "luminosity",
        "typical_range": "10^-4 to 10^6",
        "unit": "solar luminosities",
        "note": ""
      }
    ],
    "families_and_kinds": [
      "by spectral type: O, B, A, F, G, K, M",
      "by luminosity class: supergiant to dwarf",
      "remnants: white dwarf, neutron star, black hole",
      "variable and binary stars"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "astronomical object",
        "why": "the most studied class"
      },
      {
        "relation": "hosts",
        "target": "planet",
        "why": "planetary systems orbit stars"
      },
      {
        "relation": "is part of",
        "target": "galaxy",
        "why": "stars group into galaxies"
      },
      {
        "relation": "is confused with",
        "target": "star as celebrity or symbol",
        "why": "homonyms"
      }
    ],
    "identifiers": [
      {
        "scheme": "HD number",
        "value_or_pattern": "Henry Draper catalogue",
        "note": "bright stars"
      },
      {
        "scheme": "Gaia DR3 source id",
        "value_or_pattern": "numeric",
        "note": "about 1.8 billion sources"
      },
      {
        "scheme": "Bayer designation",
        "value_or_pattern": "Greek letter plus constellation",
        "note": "for example Alpha Centauri"
      }
    ],
    "standards_and_regulation": [
      "IAU Working Group on Star Names",
      "Commercial \"star naming\" has no official standing"
    ],
    "failure_modes_and_hazards": [
      "Believing purchased star names are official",
      "Mixing apparent and absolute magnitude",
      "Treating a binary system as one star"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Report a star's designation, position, magnitude and type from astronomical catalogues.",
        "Explain whether a magnitude is apparent or absolute."
      ],
      "must_not": [
        "Tell people that a star name bought from a commercial service is official.",
        "Treat a known binary or multiple system as a single star.",
        "Advise looking at the Sun without proper eye protection."
      ],
      "requires_human": [
        "Correcting a published catalogue record that others rely on."
      ]
    },
    "ethics": {
      "considerations": [
        "Selling star names exploits trust and grief; honesty about naming protects people.",
        "Stars belong to everyone's sky, and light pollution takes them away."
      ],
      "affected_parties": [
        "Buyers of novelty star names",
        "Sky watchers and astronomers"
      ]
    },
    "owners": {
      "steward": "Nobody owns a star; the International Astronomical Union governs official names.",
      "master_systems": [
        "Star catalogues maintained by the astronomical community"
      ]
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q523: star",
      "url": "https://www.wikidata.org/wiki/Q523",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Star",
      "url": "https://en.wikipedia.org/wiki/Star",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "identity",
        "name": "Identity",
        "description": "Names and catalogue numbers.",
        "rationale": "Stars carry many designations; cross-identification avoids duplicates.",
        "layers": [
          {
            "id": "names",
            "name": "Names",
            "description": "Proper names and designations.",
            "findings": [
              {
                "id": "names-finding",
                "name": "Designations",
                "description": "The names and catalogue numbers.",
                "questions": [
                  {
                    "text": "Which designations identify this star?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is its proper name IAU-approved?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "multiplicity",
            "name": "Multiplicity",
            "description": "Single or multiple.",
            "findings": [
              {
                "id": "multiplicity-finding",
                "name": "System membership",
                "description": "Whether it is part of a multiple system.",
                "questions": [
                  {
                    "text": "Is this a single star or part of a multiple system?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which component is meant?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "classification",
        "name": "Classification",
        "description": "Spectral type and stage.",
        "rationale": "Classification summarises temperature, size and evolution.",
        "layers": [
          {
            "id": "spectral",
            "name": "Spectral type",
            "description": "Type and luminosity class.",
            "findings": [
              {
                "id": "spectral-finding",
                "name": "Spectral class",
                "description": "The spectral classification.",
                "questions": [
                  {
                    "text": "What is its spectral type and luminosity class?",
                    "kind": "definition"
                  },
                  {
                    "text": "How was it classified?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "stage",
            "name": "Evolutionary stage",
            "description": "Main sequence, giant, remnant.",
            "findings": [
              {
                "id": "stage-finding",
                "name": "Stage",
                "description": "The stage of evolution.",
                "questions": [
                  {
                    "text": "What evolutionary stage is it in?",
                    "kind": "definition"
                  },
                  {
                    "text": "How will it evolve?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "physical",
        "name": "Physical properties",
        "description": "Mass, temperature and distance.",
        "rationale": "Physical parameters are what science uses.",
        "layers": [
          {
            "id": "parameters",
            "name": "Parameters",
            "description": "Mass, radius, temperature, luminosity.",
            "findings": [
              {
                "id": "parameters-finding",
                "name": "Parameters",
                "description": "Measured or derived values.",
                "questions": [
                  {
                    "text": "What are its mass, radius, temperature and luminosity?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Which are measured and which modelled?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "distance",
            "name": "Distance",
            "description": "Parallax and other methods.",
            "findings": [
              {
                "id": "distance-finding",
                "name": "Distance",
                "description": "The distance and method.",
                "questions": [
                  {
                    "text": "How far away is it, and by which method?",
                    "kind": "measurement"
                  },
                  {
                    "text": "What is the uncertainty?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "observation",
        "name": "Observation",
        "description": "Seeing and using it.",
        "rationale": "Stars are observed and used in navigation and culture.",
        "layers": [
          {
            "id": "visibility",
            "name": "Visibility",
            "description": "Magnitude and position.",
            "findings": [
              {
                "id": "visibility-finding",
                "name": "Visibility",
                "description": "Brightness and when it is visible.",
                "questions": [
                  {
                    "text": "What is its apparent magnitude, and when is it visible?",
                    "kind": "measurement"
                  },
                  {
                    "text": "In which constellation is it?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "variability",
            "name": "Variability",
            "description": "Changes in brightness.",
            "findings": [
              {
                "id": "variability-finding",
                "name": "Variability",
                "description": "Whether it varies.",
                "questions": [
                  {
                    "text": "Is its brightness variable, with what period?",
                    "kind": "measurement"
                  },
                  {
                    "text": "What causes the variation?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should named stars be registered as instances with Gaia identifiers?",
    "How should multiple star systems be modelled?",
    "Which spectral classification version should be used?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}
