{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T05:28:49Z",
    "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": "2026-10-05T13:19:55+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-06T19:51:59+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q42372",
    "registryId": "vr.tr.nebula",
    "name": "nebula",
    "version": "0.2.0-wave.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.SPC"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q42372/",
  "model": {
    "registry_id": "vr.tr.nebula",
    "name": "nebula",
    "purpose": "Let an agent handle nebulae by type, designation, distance and physical nature, with catalogue cross-identification.",
    "definition": "An interstellar cloud of gas and dust, visible when it emits, reflects or blocks light, including emission, reflection, dark and planetary nebulae and star-forming molecular clouds.",
    "what_it_is_for": "Nebulae are where stars form and where dying stars return material.",
    "affordances": [
      "observe and image it",
      "classify it by type",
      "measure its distance and composition",
      "catalogue it"
    ],
    "distinguishing_features": [
      "Interstellar cloud within a galaxy",
      "Classified by how it interacts with light",
      "Star-forming or stellar-remnant",
      "Not a galaxy"
    ],
    "appearance": "Glowing clouds of red, green or blue light, or dark patches against stars; many are faint and need long exposures.",
    "visual_identification": [
      "Extended glowing or dark regions",
      "Designations such as M42 or NGC 7293",
      "Galaxies were once called nebulae; modern usage separates them"
    ],
    "physical_properties": [
      {
        "quantity": "size",
        "typical_range": "1-hundreds",
        "unit": "light years",
        "note": ""
      },
      {
        "quantity": "density",
        "typical_range": "100-1000000",
        "unit": "particles per cm3",
        "note": "very low by Earth standards"
      }
    ],
    "families_and_kinds": [
      "emission nebulae",
      "reflection nebulae",
      "dark nebulae and molecular clouds",
      "planetary nebulae",
      "supernova remnants"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "astronomical object",
        "why": "deep-sky object"
      },
      {
        "relation": "forms",
        "target": "star",
        "why": "star formation"
      },
      {
        "relation": "is part of",
        "target": "galaxy",
        "why": "interstellar medium"
      },
      {
        "relation": "is confused with",
        "target": "galaxy",
        "why": "historical usage"
      }
    ],
    "identifiers": [
      {
        "scheme": "Messier and NGC numbers",
        "value_or_pattern": "M or NGC plus number",
        "note": "catalogues"
      }
    ],
    "standards_and_regulation": [
      "IAU nomenclature"
    ],
    "failure_modes_and_hazards": [
      "Confusing historical nebula labels with galaxies",
      "False-colour images misread as true colour"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Report a nebula's catalogue designations, type and distance from astronomical sources.",
        "Help observers and imagers plan with positions and visibility."
      ],
      "must_not": [
        "Present processed or false-colour images as natural colour without saying so.",
        "Use others' astronomical images without credit.",
        "Confuse planetary nebulae with planets or with star-forming nebulae."
      ],
      "requires_human": [
        "Publishing composite images under an observatory's or another person's name."
      ]
    },
    "ethics": {
      "considerations": [
        "Images shape public understanding; their processing should be honest.",
        "Imagers and observatories deserve credit for their work."
      ],
      "affected_parties": [
        "Image creators",
        "The public"
      ]
    },
    "owners": {
      "steward": "Nobody: natural objects; astronomical catalogues record them.",
      "master_systems": []
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q42372: nebula",
      "url": "https://www.wikidata.org/wiki/Q42372",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Nebula",
      "url": "https://en.wikipedia.org/wiki/Nebula",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "identity",
        "name": "Identity",
        "description": "Which nebula.",
        "rationale": "Designations identify it.",
        "layers": [
          {
            "id": "designation",
            "name": "Designation",
            "description": "Catalogue ids.",
            "findings": [
              {
                "id": "designation-finding",
                "name": "Designations",
                "description": "Designations and names.",
                "questions": [
                  {
                    "text": "Which designations identify this nebula?",
                    "kind": "provenance"
                  },
                  {
                    "text": "What is its common name?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "type",
            "name": "Type",
            "description": "Emission, reflection, dark.",
            "findings": [
              {
                "id": "type-finding",
                "name": "Type",
                "description": "The type.",
                "questions": [
                  {
                    "text": "What type of nebula is it?",
                    "kind": "definition"
                  },
                  {
                    "text": "What makes it shine or appear dark?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "physical",
        "name": "Physical",
        "description": "Distance and make-up.",
        "rationale": "Physical data describe what it is.",
        "layers": [
          {
            "id": "distance",
            "name": "Distance and size",
            "description": "How far and big.",
            "findings": [
              {
                "id": "distance-finding",
                "name": "Distance",
                "description": "Distance and size.",
                "questions": [
                  {
                    "text": "How far away and how large is it?",
                    "kind": "measurement"
                  },
                  {
                    "text": "By which method?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "composition",
            "name": "Composition",
            "description": "Gas and dust.",
            "findings": [
              {
                "id": "composition-finding",
                "name": "Composition",
                "description": "Composition.",
                "questions": [
                  {
                    "text": "What is it made of?",
                    "kind": "measurement"
                  },
                  {
                    "text": "What stars illuminate or form in it?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "observation",
        "name": "Observation",
        "description": "Seeing it.",
        "rationale": "Faint objects need guidance.",
        "layers": [
          {
            "id": "visibility",
            "name": "Visibility",
            "description": "Where and when.",
            "findings": [
              {
                "id": "visibility-finding",
                "name": "Visibility",
                "description": "Visibility.",
                "questions": [
                  {
                    "text": "When and where is it visible, and with what equipment?",
                    "kind": "action"
                  },
                  {
                    "text": "How bright is it?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          },
          {
            "id": "images",
            "name": "Images",
            "description": "Colour and processing.",
            "findings": [
              {
                "id": "images-finding",
                "name": "Image notes",
                "description": "Image interpretation.",
                "questions": [
                  {
                    "text": "Are images of it true or false colour?",
                    "kind": "boundary"
                  },
                  {
                    "text": "Which filters were used?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "science",
        "name": "Science",
        "description": "Star formation and death.",
        "rationale": "Nebulae are laboratories of stellar life.",
        "layers": [
          {
            "id": "role",
            "name": "Role",
            "description": "Birth or death.",
            "findings": [
              {
                "id": "role-finding",
                "name": "Role",
                "description": "Role in stellar lifecycle.",
                "questions": [
                  {
                    "text": "Is it a star-forming region or a stellar remnant?",
                    "kind": "definition"
                  },
                  {
                    "text": "What is known about its history?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "research",
            "name": "Research",
            "description": "Observations.",
            "findings": [
              {
                "id": "research-finding",
                "name": "Research",
                "description": "Key observations.",
                "questions": [
                  {
                    "text": "Which observatories have studied it?",
                    "kind": "provenance"
                  },
                  {
                    "text": "What did they find?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should nebula types be separate entries?",
    "How should image colour conventions be explained?",
    "How should designations be cross-identified?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}
