{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T21:12:39Z",
    "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": "2026-10-05T23:50:00Z",
      "ingestedAt": "2026-10-05T20:48:25+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-08T19:09:53+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q319013",
    "registryId": "vr.tr.evening-star",
    "name": "evening star",
    "version": "0.2.0-wave.2",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.SPC"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q319013/",
  "model": {
    "registry_id": "vr.tr.evening-star",
    "name": "evening star",
    "purpose": "Let an agent explain what the evening star is, tell when Venus or Mercury is visible in the evening, and describe cultural names and meanings with attribution.",
    "definition": "A bright planet, usually Venus and sometimes Mercury, seen in the western sky after sunset, called the evening star in many cultures, with the same planet appearing as the morning star before sunrise at other times of its orbit; the term is cultural and observational rather than a class of star.",
    "what_it_is_for": "Naked-eye astronomy and culture.",
    "affordances": [
      "explain which planet is the evening star",
      "give current evening visibility with sources",
      "describe cultural names and mythology",
      "distinguish from stars and other objects"
    ],
    "distinguishing_features": [
      "A planet, not a star",
      "Evening apparition",
      "Usually Venus",
      "Cultural name"
    ],
    "appearance": "A very bright, steady point of light in the west after sunset.",
    "visual_identification": [
      "Bright, does not twinkle much",
      "Low in the west after sunset",
      "Sirius is a true star and rises elsewhere"
    ],
    "physical_properties": [
      {
        "quantity": "Apparent visual magnitude",
        "unit": "Magnitude",
        "typical_range": "",
        "note": "Brightness is measured photometrically and varies with the planet, its phase and its distance from Earth."
      },
      {
        "quantity": "Angular separation from the Sun",
        "unit": "Degrees",
        "typical_range": "",
        "note": "Elongation is measured between the apparent positions of the planet and the Sun in the sky."
      },
      {
        "quantity": "Apparent angular diameter",
        "unit": "Arcseconds",
        "typical_range": "",
        "note": "The angular width of the planetary disk is measured telescopically and varies with distance from Earth."
      }
    ],
    "families_and_kinds": [
      "Venus as evening star",
      "Mercury as evening star",
      "morning star apparitions",
      "mythological figures named for the evening star"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "planet",
        "why": "category"
      },
      {
        "relation": "is related to",
        "target": "Venus",
        "why": "usual identity"
      },
      {
        "relation": "is related to",
        "target": "Mercury",
        "why": "sometimes"
      },
      {
        "relation": "is related to",
        "target": "sky",
        "why": "where it is seen"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "No regulation; astronomical ephemerides"
    ],
    "failure_modes_and_hazards": [
      "Calling it a star",
      "Mistaking aircraft or satellites",
      "Confusing morning and evening apparitions"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Explain that the evening star is a planet, usually Venus, and when it is visible.",
        "Describe its role in the myths and calendars of many cultures."
      ],
      "must_not": [
        "Present the evening star as a star rather than a planet.",
        "Present astrological readings of the evening star as predictions.",
        "Mock the cultural and religious meanings attached to it."
      ],
      "requires_human": [
        "Publishing interpretations of its meaning in a living religious tradition."
      ]
    },
    "ethics": {
      "considerations": [
        "The evening star carries religious and cultural meaning for many peoples.",
        "Public understanding of astronomy depends on clear explanations."
      ],
      "affected_parties": [
        "Learners",
        "Cultural and religious communities"
      ]
    },
    "owners": {
      "steward": "Nobody: a planet seen from Earth, held in common.",
      "master_systems": []
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q319013: evening star",
      "url": "https://www.wikidata.org/wiki/Q319013",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-de",
      "title": "Wikipedia (de): Abendstern",
      "url": "https://de.wikipedia.org/wiki/Abendstern",
      "url_status": "live",
      "checked_by": "wikidata-api sitelink",
      "what_it_supports": "general description of the item"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "see",
        "name": "See",
        "description": "Spotting it.",
        "rationale": "Observation.",
        "layers": [
          {
            "id": "when",
            "name": "When",
            "description": "Current visibility.",
            "findings": [
              {
                "id": "when-finding",
                "name": "When",
                "description": "Visibility.",
                "questions": [
                  {
                    "text": "Is Venus or Mercury currently visible as an evening star from this location, according to an ephemeris?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Where and when should the observer look?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "identify",
            "name": "Identify",
            "description": "Is it the evening star.",
            "findings": [
              {
                "id": "identify-finding",
                "name": "Identify",
                "description": "Identification.",
                "questions": [
                  {
                    "text": "Is the bright object seen in the west a planet, a star, an aircraft or a satellite?",
                    "kind": "boundary"
                  },
                  {
                    "text": "How can it be confirmed?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "science",
        "name": "Science",
        "description": "Why it appears.",
        "rationale": "Orbits.",
        "layers": [
          {
            "id": "orbit",
            "name": "Orbit",
            "description": "Inner planet apparitions.",
            "findings": [
              {
                "id": "orbit-finding",
                "name": "Orbit",
                "description": "Orbits.",
                "questions": [
                  {
                    "text": "Why do Venus and Mercury alternate between evening and morning visibility?",
                    "kind": "definition"
                  },
                  {
                    "text": "What is greatest elongation?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "phases",
            "name": "Phases",
            "description": "Phases and brightness.",
            "findings": [
              {
                "id": "phases-finding",
                "name": "Phases",
                "description": "Phases.",
                "questions": [
                  {
                    "text": "Why does Venus show phases and vary in brightness?",
                    "kind": "definition"
                  },
                  {
                    "text": "What can a small telescope show?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "culture",
        "name": "Culture",
        "description": "Names and myths.",
        "rationale": "Attribution.",
        "layers": [
          {
            "id": "names",
            "name": "Names",
            "description": "Cultural names.",
            "findings": [
              {
                "id": "names-finding",
                "name": "Names",
                "description": "Names.",
                "questions": [
                  {
                    "text": "What names have cultures given the evening star, and when was it realised to be the same object as the morning star?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which deities are linked to it?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "literature",
            "name": "Literature",
            "description": "In literature.",
            "findings": [
              {
                "id": "literature-finding",
                "name": "Literature",
                "description": "Literature.",
                "questions": [
                  {
                    "text": "How is the evening star used in poetry and song?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which examples are notable?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "learn",
        "name": "Learn",
        "description": "Teaching.",
        "rationale": "Education.",
        "layers": [
          {
            "id": "teach",
            "name": "Teach",
            "description": "Teaching.",
            "findings": [
              {
                "id": "teach-finding",
                "name": "Teach",
                "description": "Teaching.",
                "questions": [
                  {
                    "text": "How can the evening star be used to teach planetary motion?",
                    "kind": "action"
                  },
                  {
                    "text": "Which misconceptions arise?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "photo",
            "name": "Photo",
            "description": "Photographing.",
            "findings": [
              {
                "id": "photo-finding",
                "name": "Photo",
                "description": "Photography.",
                "questions": [
                  {
                    "text": "How can the evening star be photographed at dusk?",
                    "kind": "action"
                  },
                  {
                    "text": "Which conjunctions are photogenic?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should the morning star be a separate entry?",
    "How should ephemeris data be linked?",
    "How should mythology be attributed?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}