{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.kordylewski-cloud","code":"thing-q1430362","url":"https://ver.cy/models/thing/q1430362/","name":"Kordylewski cloud","alternateNames":[],"kind":"thing","status":"research-draft","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.SPC"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Faint concentrations of dust proposed to exist near the L4 and L5 Lagrange points of the Earth-Moon system, first reported by Kazimierz Kordylewski in 1961; their existence has long been debated, with later polarisation observations reported as supporting evidence.","purpose":"Let an agent explain the Kordylewski clouds, Lagrange points and the observational debate, attributing claims to the researchers involved.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Dust clouds at Lagrange points","Very faint","Debated existence","Transient and variable"],"structure":{"bundles":[{"id":"location","name":"Location","description":"Lagrange points.","layers":[{"id":"lagrange","name":"Lagrange","description":"L4 and L5.","findings":[{"id":"lagrange-finding","name":"Lagrange","description":"Lagrange points.","questions":[{"text":"What are the Earth-Moon L4 and L5 points, and why can material gather there?","kind":"definition"},{"text":"How stable are they?","kind":"definition"}]}]},{"id":"dynamics","name":"Dynamics","description":"Dust behaviour.","findings":[{"id":"dynamics-finding","name":"Dynamics","description":"Dust dynamics.","questions":[{"text":"How do solar radiation and gravity affect dust there, according to models?","kind":"provenance"},{"text":"Would clouds be permanent or transient?","kind":"boundary"}]}]}]},{"id":"evidence","name":"Evidence","description":"Observations.","layers":[{"id":"history","name":"History","description":"Early reports.","findings":[{"id":"history-finding","name":"History","description":"Early reports.","questions":[{"text":"What did Kordylewski report, and how was it received?","kind":"provenance"},{"text":"Why were early observations doubted?","kind":"provenance"}]}]},{"id":"recent","name":"Recent","description":"Newer studies.","findings":[{"id":"recent-finding","name":"Recent","description":"Recent studies.","questions":[{"text":"What do recent polarisation studies claim, and by whom?","kind":"provenance"},{"text":"Have they been independently confirmed?","kind":"boundary"}]}]}]},{"id":"spaceflight","name":"Spaceflight","description":"Implications.","layers":[{"id":"missions","name":"Missions","description":"Spacecraft risk.","findings":[{"id":"missions-finding","name":"Missions","description":"Mission implications.","questions":[{"text":"Could dust at these points affect spacecraft, according to studies?","kind":"provenance"},{"text":"Have missions sampled them?","kind":"provenance"}]}]},{"id":"observing","name":"Observing","description":"Can they be seen.","findings":[{"id":"observing-finding","name":"Observing","description":"Observing.","questions":[{"text":"Can amateurs detect the clouds, and what conditions are needed?","kind":"boundary"},{"text":"What confounding glows exist?","kind":"definition"}]}]}]},{"id":"learning","name":"Learning","description":"Explaining.","layers":[{"id":"explain","name":"Explain","description":"Plain language.","findings":[{"id":"explain-finding","name":"Explain","description":"Plain explanation.","questions":[{"text":"How can the idea of dust clouds at Lagrange points be explained simply?","kind":"action"},{"text":"Which caveats apply?","kind":"boundary"}]}]},{"id":"sources","name":"Sources","description":"Literature.","findings":[{"id":"sources-finding","name":"Sources","description":"Literature.","questions":[{"text":"Which papers report and dispute the detections?","kind":"provenance"},{"text":"Which reviews summarise them?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Describe the Kordylewski clouds and the evidence for and against them.","Report new observations with their source and the debate they belong to."],"mustNot":["Present the clouds as confirmed or disproved beyond what the evidence shows.","Use the clouds to support claims of hidden objects or conspiracies.","Misattribute the original reports or later observations."],"requiresHuman":["Deciding that the clouds are confirmed for a reference or teaching resource."]},"ethics":{"considerations":["Contested science should be shown as contested, not settled for convenience."],"affectedParties":["Readers and students","Researchers"]},"owners":{"steward":"Nobody: a natural phenomenon held in common; the scientific community debates its status.","roles":[],"masterSystems":[]},"relations":[{"target":"Q1250298","type":"parent","note":"registry parent class"},{"target":"co-orbital object","type":"related","note":"category"},{"target":"Lagrange point","type":"related","note":"location"},{"target":"Kazimierz Kordylewski","type":"related","note":"person"},{"target":"interplanetary dust","type":"related","note":"material"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.kordylewski-cloud","Wikidata: Q1430362 (https://www.wikidata.org/wiki/Q1430362)"]},"properties":{"applicability":"required","items":[]},"recognition":{"applicability":"required","items":["Near Earth-Moon L4 and L5","Faint polarised light signals","Gegenschein is sunlight scattered opposite the Sun","Extremely faint glows, if present, very hard to see against the sky."]},"capabilities":{"applicability":"required","items":["explain Lagrange points L4 and L5","summarise observations and doubts","describe why dust might gather there","consider implications for spaceflight"]},"hazards":{"applicability":"required","items":["Presenting debated detections as settled","Confusing with other faint sky glows"]},"interfaces":{"applicability":"required","items":["No specific regulation"]},"context":{"applicability":"required","items":["Studying dust dynamics and the Earth-Moon environment.","L4 cloud","L5 cloud","dust at other Lagrange points (related)"]}},"sources":[],"openQuestions":["Should each cloud be a separate entry?","How should observational claims be tracked?","How should Lagrange point entries be linked?"],"resources":{"spec":"/models/things/publications/thing-q1430362/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1430362/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T13:33:51Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"missing","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"missing"},"notes":{"sources":"Written from model knowledge without web access; claims are unverified."},"score":0.882}}