{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T09:19:58Z", "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": "2026-10-05T13:24:01+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-06T19:51:53+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q1054411", "registryId": "vr.tr.semiregular-variable-star", "name": "semiregular variable star", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.SPC" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q1054411/", "model": { "registry_id": "vr.tr.semiregular-variable-star", "name": "semiregular variable star", "purpose": "Let an agent describe semiregular variables by subclass, period, amplitude and observation, with sourced data.", "definition": "A giant or supergiant pulsating variable star showing periodic brightness changes interrupted by irregularities, with periods from about 20 to over 2000 days; subclasses include SRa, SRb, SRc and SRd.", "what_it_is_for": "Studying late stellar evolution and pulsation.", "affordances": [ "classify by subclass", "record light curves", "submit observations to databases", "compare with Mira variables" ], "distinguishing_features": [ "Semi-periodic pulsation", "Giants and supergiants", "Smaller amplitudes than Miras", "Common among red giants" ], "appearance": "Red giant or supergiant stars varying in brightness over weeks to years.", "visual_identification": [ "GCVS types SRa, SRb, SRc, SRd", "Irregular periodic light curves", "Long secondary periods in some" ], "physical_properties": [ { "quantity": "period", "typical_range": "about 20-2000", "unit": "days", "note": "" }, { "quantity": "amplitude", "typical_range": "up to about 2.5", "unit": "magnitudes", "note": "visual" } ], "families_and_kinds": [ "SRa", "SRb", "SRc (supergiants)", "SRd (yellow giants)", "stars with long secondary periods" ], "related_models": [ { "relation": "is a kind of", "target": "pulsating variable star", "why": "category" }, { "relation": "is related to", "target": "Mira variable", "why": "long-period variables" }, { "relation": "is often a", "target": "red giant", "why": "star type" }, { "relation": "is catalogued in", "target": "GCVS and VSX", "why": "catalogues" } ], "identifiers": [ { "scheme": "GCVS designation", "value_or_pattern": "variable star names", "note": "catalogue" } ], "standards_and_regulation": [ "IAU variable star nomenclature" ], "failure_modes_and_hazards": [ "Misclassifying subtype", "Overinterpreting sparse data" ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Describe semiregular variables and their subclasses from variable star catalogues.", "Help observers log brightness estimates to the databases they contribute to." ], "must_not": [ "Submit fabricated or unchecked observations to shared variable star databases.", "Misattribute observations to the wrong observer." ], "requires_human": [ "Reclassifying a star in a catalogue that others rely on." ] }, "ethics": { "considerations": [ "Amateur observers contribute much of the data and deserve credit.", "Shared databases depend on honest reporting." ], "affected_parties": [ "Observers", "Astronomers" ] }, "owners": { "steward": "Nobody: held in common; variable star catalogues and observer databases record them.", "master_systems": [ "General Catalogue of Variable Stars", "Variable star observer databases" ] } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q1054411: semiregular variable star", "url": "https://www.wikidata.org/wiki/Q1054411", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Semiregular variable star", "url": "https://en.wikipedia.org/wiki/Semiregular_variable_star", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "identity", "name": "Identity", "description": "Which star.", "rationale": "Designations identify.", "layers": [ { "id": "designation", "name": "Designation", "description": "Name.", "findings": [ { "id": "designation-finding", "name": "Designation", "description": "Designation.", "questions": [ { "text": "What is the star variable designation?", "kind": "provenance" }, { "text": "Which subclass is it?", "kind": "definition" } ] } ] }, { "id": "type", "name": "Type", "description": "Giant or supergiant.", "findings": [ { "id": "type-finding", "name": "Type", "description": "Star type.", "questions": [ { "text": "Is it a giant or supergiant, of which spectral type?", "kind": "definition" }, { "text": "How far away is it?", "kind": "measurement" } ] } ] } ] }, { "id": "variability", "name": "Variability", "description": "Light curve.", "rationale": "Light curves characterise it.", "layers": [ { "id": "period", "name": "Period", "description": "Timescales.", "findings": [ { "id": "period-finding", "name": "Period", "description": "Period.", "questions": [ { "text": "What periods does it show?", "kind": "measurement" }, { "text": "Is there a long secondary period?", "kind": "provenance" } ] } ] }, { "id": "amplitude", "name": "Amplitude", "description": "Range.", "findings": [ { "id": "amplitude-finding", "name": "Amplitude", "description": "Amplitude.", "questions": [ { "text": "What is the brightness range?", "kind": "measurement" }, { "text": "How irregular is it?", "kind": "definition" } ] } ] } ] }, { "id": "physics", "name": "Physics", "description": "Pulsation.", "rationale": "Pulsation has causes.", "layers": [ { "id": "mechanism", "name": "Mechanism", "description": "Pulsation modes.", "findings": [ { "id": "mechanism-finding", "name": "Mechanism", "description": "Mechanism.", "questions": [ { "text": "What drives the pulsation, according to studies?", "kind": "provenance" }, { "text": "How certain is it?", "kind": "boundary" } ] } ] }, { "id": "evolution", "name": "Evolution", "description": "Stage.", "findings": [ { "id": "evolution-finding", "name": "Evolution", "description": "Evolutionary stage.", "questions": [ { "text": "What evolutionary stage does it indicate?", "kind": "definition" }, { "text": "How does it relate to Miras?", "kind": "definition" } ] } ] } ] }, { "id": "observing", "name": "Observing", "description": "Contributing.", "rationale": "Amateurs contribute data.", "layers": [ { "id": "visibility", "name": "Visibility", "description": "Equipment.", "findings": [ { "id": "visibility-finding", "name": "Visibility", "description": "Visibility.", "questions": [ { "text": "Can it be observed with binoculars or small telescopes?", "kind": "boundary" }, { "text": "When is it best placed?", "kind": "measurement" } ] } ] }, { "id": "submit", "name": "Submit", "description": "Databases.", "findings": [ { "id": "submit-finding", "name": "Submit", "description": "Submitting data.", "questions": [ { "text": "How can observations be submitted to variable star databases?", "kind": "action" }, { "text": "Which organisation runs them?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should subclasses be separate entries?", "How should VSX data be linked?", "How should long secondary periods be explained?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }