{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T20:05:18Z",
    "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": 2,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-05T19:00:00Z",
      "ingestedAt": "2026-10-05T20:49:13+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "revisions": [
      {
        "at": "2026-10-07T11:41:19+00:00",
        "engine": "codex",
        "fields": [
          "agent_conduct",
          "definition",
          "distinguishing_features",
          "owners",
          "purpose",
          "visual_identification"
        ],
        "answering_review": "662a2255ea90a58bc7e6b85d97e4be8386f03c3686db14a002b698b274372131"
      }
    ],
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-07T12:16:35+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q8928",
    "registryId": "vr.tr.constellation",
    "name": "constellation",
    "version": "0.2.0-wave.2",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.PLC"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q8928/",
  "model": {
    "registry_id": "vr.tr.constellation",
    "name": "constellation",
    "purpose": "Let an agent explain constellation patterns in current and historical systems, help people find and observe them, explain boundaries where applicable, distinguish IAU usage from asterisms and other cultural star groupings, and describe mythology with attribution.",
    "definition": "A constellation is an image or recognised pattern of stars on the celestial sphere in a current or historical system or description; it need not have defined boundaries, although modern IAU usage assigns bounded sky regions to 88 constellations.",
    "what_it_is_for": "Sky navigation, astronomy and culture.",
    "affordances": [
      "identify constellations and their stars",
      "find when and where a constellation is visible",
      "distinguish constellations, asterisms and cultural star groups",
      "describe mythology with attribution"
    ],
    "distinguishing_features": [
      "A constellation represents an image or recognised pattern of stars on the celestial sphere.",
      "The modern IAU system assigns bounded sky regions to 88 constellations.",
      "Constellation patterns vary across cultural and historical systems.",
      "Mythological names occur in constellation traditions."
    ],
    "appearance": "Star patterns in the night sky.",
    "visual_identification": [
      "Recognised star patterns identify constellations within a stated system or description.",
      "IAU boundaries apply to modern IAU sky regions and are not required for every constellation tradition.",
      "The Big Dipper is an asterism within Ursa Major in modern IAU usage."
    ],
    "physical_properties": [
      {
        "quantity": "Angular extent",
        "unit": "deg",
        "typical_range": "",
        "note": "Measure the angular span between specified boundary points or constituent stars within the stated constellation tradition."
      },
      {
        "quantity": "Solid angle",
        "unit": "square degrees",
        "typical_range": "",
        "note": "Calculate the enclosed area on the celestial sphere only when the adopted constellation system defines a boundary."
      }
    ],
    "families_and_kinds": [
      "IAU constellations",
      "zodiacal constellations",
      "circumpolar constellations",
      "Chinese and other cultural star groups",
      "former and obsolete constellations"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "asterism",
        "why": "category"
      },
      {
        "relation": "contains",
        "target": "celestial body",
        "why": "stars"
      },
      {
        "relation": "is related to",
        "target": "astrology",
        "why": "zodiac signs are distinct"
      },
      {
        "relation": "is used in",
        "target": "navigational aid",
        "why": "celestial navigation"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "IAU constellation boundaries of 1930",
      "IAU star naming conventions"
    ],
    "failure_modes_and_hazards": [
      "Confusing constellations with zodiac signs",
      "Treating one culture star groups as universal",
      "Outdated star names"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Identify constellation patterns within a stated current or historical system and describe boundaries where that system defines them.",
        "Describe traditional star patterns of different cultures and credit them."
      ],
      "must_not": [
        "Present astrology as having the scientific standing of astronomy.",
        "Present one culture's constellations as the only valid sky lore.",
        "Sell star or constellation naming as official recognition."
      ],
      "requires_human": [
        "Using constellation lore of an indigenous culture in commercial products."
      ]
    },
    "ethics": {
      "considerations": [
        "Indigenous star knowledge is cultural heritage and should be credited.",
        "Fake star naming schemes mislead buyers."
      ],
      "affected_parties": [
        "Indigenous communities",
        "Stargazers and students",
        "Buyers of naming products"
      ]
    },
    "owners": {
      "steward": "Nobody owns the sky; communities maintain their constellation traditions, while the international astronomical body defines boundaries for the modern IAU system.",
      "master_systems": []
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q8928: constellation",
      "url": "https://www.wikidata.org/wiki/Q8928",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Constellation",
      "url": "https://en.wikipedia.org/wiki/Constellation",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "find",
        "name": "Find",
        "description": "Locating constellations.",
        "rationale": "Season and latitude.",
        "layers": [
          {
            "id": "visibility",
            "name": "Visibility",
            "description": "When visible.",
            "findings": [
              {
                "id": "visibility-finding",
                "name": "Visibility",
                "description": "Visibility.",
                "questions": [
                  {
                    "text": "When and where in the sky is this constellation visible from this location?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Is it circumpolar here?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "stars",
            "name": "Stars",
            "description": "Its stars.",
            "findings": [
              {
                "id": "stars-finding",
                "name": "Stars",
                "description": "Stars.",
                "questions": [
                  {
                    "text": "Which are the brightest stars and notable objects in this constellation?",
                    "kind": "provenance"
                  },
                  {
                    "text": "How are its stars named?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "define",
        "name": "Define",
        "description": "Boundaries and terms.",
        "rationale": "IAU standard.",
        "layers": [
          {
            "id": "boundaries",
            "name": "Boundaries",
            "description": "IAU boundaries.",
            "findings": [
              {
                "id": "boundaries-finding",
                "name": "Boundaries",
                "description": "Boundaries.",
                "questions": [
                  {
                    "text": "How did the IAU define constellation boundaries, and why?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which constellation contains this celestial coordinate?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          },
          {
            "id": "terms",
            "name": "Terms",
            "description": "Constellation versus asterism.",
            "findings": [
              {
                "id": "terms-finding",
                "name": "Terms",
                "description": "Terms.",
                "questions": [
                  {
                    "text": "Is this pattern a constellation or an asterism?",
                    "kind": "boundary"
                  },
                  {
                    "text": "How do zodiac signs differ from zodiacal constellations?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "cultures",
        "name": "Cultures",
        "description": "Sky traditions.",
        "rationale": "Attribute to cultures.",
        "layers": [
          {
            "id": "mythology",
            "name": "Mythology",
            "description": "Myths and names.",
            "findings": [
              {
                "id": "mythology-finding",
                "name": "Mythology",
                "description": "Mythology.",
                "questions": [
                  {
                    "text": "What mythology is attached to this constellation in Greek and other traditions, as those traditions tell it?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Where do the names come from?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "other",
            "name": "Other",
            "description": "Other sky systems.",
            "findings": [
              {
                "id": "other-finding",
                "name": "Other",
                "description": "Other systems.",
                "questions": [
                  {
                    "text": "How do Chinese, Indigenous and other star groupings differ from the IAU system?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Are they described in their own terms?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "history",
        "name": "History",
        "description": "Changing skies.",
        "rationale": "Constellations have history.",
        "layers": [
          {
            "id": "former",
            "name": "Former",
            "description": "Obsolete constellations.",
            "findings": [
              {
                "id": "former-finding",
                "name": "Former",
                "description": "Former constellations.",
                "questions": [
                  {
                    "text": "Which constellations were proposed and later dropped, and why?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Who created them?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "teach",
            "name": "Teach",
            "description": "Learning the sky.",
            "findings": [
              {
                "id": "teach-finding",
                "name": "Teach",
                "description": "Learning.",
                "questions": [
                  {
                    "text": "How can constellations be learned with apps and star charts?",
                    "kind": "action"
                  },
                  {
                    "text": "Which are easiest to start with?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should each constellation be a separate entry?",
    "How should star catalogues be linked?",
    "How should cultural astronomies be attributed?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}
