{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.exocomet","code":"thing-q2855300","url":"https://ver.cy/models/thing/q2855300/","name":"exocomet","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":"A comet orbiting a star other than the Sun, detected indirectly through variable absorption features in stellar spectra, first around Beta Pictoris in 1987, and through asymmetric dips in light curves from space telescopes; interstellar comets such as 2I/Borisov that pass through the solar system are related objects.","purpose":"Let an agent explain exocomets by detection method, host systems, significance for planetary system evolution and related interstellar objects, with sourced findings.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Orbit another star","Detected indirectly","Linked to debris discs","Reveal system dynamics"],"structure":{"bundles":[{"id":"detection","name":"Detection","description":"Methods.","layers":[{"id":"spectra","name":"Spectra","description":"Absorption.","findings":[{"id":"spectra-finding","name":"Spectra","description":"Spectroscopic detection.","questions":[{"text":"How do variable absorption lines reveal exocomets?","kind":"definition"},{"text":"Which instruments detect them?","kind":"provenance"}]}]},{"id":"transits","name":"Transits","description":"Light curves.","findings":[{"id":"transits-finding","name":"Transits","description":"Photometric detection.","questions":[{"text":"Why do exocomet transits look asymmetric?","kind":"definition"},{"text":"Which missions found them?","kind":"provenance"}]}]}]},{"id":"systems","name":"Systems","description":"Host stars.","layers":[{"id":"hosts","name":"Hosts","description":"Known hosts.","findings":[{"id":"hosts-finding","name":"Hosts","description":"Host stars.","questions":[{"text":"Which stars are known to host exocomets, according to studies?","kind":"provenance"},{"text":"How secure are the detections?","kind":"boundary"}]}]},{"id":"discs","name":"Discs","description":"Debris discs.","findings":[{"id":"discs-finding","name":"Discs","description":"Debris discs.","questions":[{"text":"How are exocomets linked to debris discs around young stars?","kind":"definition"},{"text":"What does that suggest about planets?","kind":"provenance"}]}]}]},{"id":"science","name":"Science","description":"Significance.","layers":[{"id":"evolution","name":"Evolution","description":"System evolution.","findings":[{"id":"evolution-finding","name":"Evolution","description":"System evolution.","questions":[{"text":"What do exocomets reveal about how planetary systems evolve?","kind":"provenance"},{"text":"Could they deliver water to planets?","kind":"provenance"}]}]},{"id":"comparison","name":"Comparison","description":"Solar system comets.","findings":[{"id":"comparison-finding","name":"Comparison","description":"Comparison.","questions":[{"text":"How do exocomets compare with comets in our solar system?","kind":"definition"},{"text":"What is still unknown?","kind":"boundary"}]}]}]},{"id":"related","name":"Related","description":"Interstellar objects.","layers":[{"id":"interstellar","name":"Interstellar","description":"2I/Borisov.","findings":[{"id":"interstellar-finding","name":"Interstellar","description":"Interstellar comets.","questions":[{"text":"How do interstellar comets such as 2I/Borisov relate to exocomets?","kind":"definition"},{"text":"What did observations of it show?","kind":"provenance"}]}]},{"id":"explain","name":"Explain","description":"Plain language.","findings":[{"id":"explain-finding","name":"Explain","description":"Plain explanation.","questions":[{"text":"How can exocomet detection be explained simply?","kind":"action"},{"text":"Which caveats apply?","kind":"boundary"}]}]}]}]},"agentConduct":{"may":["Describe exocomets and how they are detected, citing astronomical sources.","Report catalogued detections with their star, method and uncertainty."],"mustNot":["Present a disputed signal as a confirmed exocomet.","Suggest exocomets threaten Earth without evidence.","Credit a detection to the wrong team."],"requiresHuman":["Announcing a new discovery or classification publicly."]},"ethics":{"considerations":["Exaggerated space news erodes trust in science.","Credit for discoveries matters to researchers' careers."],"affectedParties":["Astronomers","Students and the public"]},"owners":{"steward":"Nobody owns them; astronomical catalogues record detections.","roles":[],"masterSystems":["Astronomical object catalogues"]},"relations":[{"target":"Q3132741","type":"parent","note":"registry parent class"},{"target":"Q5422256","type":"parent","note":"registry parent class"},{"target":"extrasolar object","type":"related","note":"category"},{"target":"comet","type":"related","note":"solar system analogue"},{"target":"debris disc","type":"related","note":"environment"},{"target":"Beta Pictoris","type":"related","note":"example"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.exocomet","Wikidata: Q2855300 (https://www.wikidata.org/wiki/Q2855300)"]},"properties":{"applicability":"required","items":[]},"recognition":{"applicability":"required","items":["Transient absorption lines in spectra","Asymmetric transit dips","Interstellar comets are seen passing through our solar system","Not imaged directly; inferred from spectral absorption and light curve dips."]},"capabilities":{"applicability":"required","items":["explain how exocomets are detected","find known exocomet host stars","relate exocomets to debris discs","distinguish them from interstellar comets"]},"hazards":{"applicability":"required","items":["Over-interpreting weak signals","Confusing exocomets with interstellar comets"]},"interfaces":{"applicability":"required","items":["No specific regulation"]},"context":{"applicability":"required","items":["Studying planetary systems around other stars.","spectroscopically detected exocomets","photometrically detected exocomets","exocomet families in a system","interstellar comets (related)"]}},"sources":[],"openQuestions":["Should host systems be separate entries?","How should detections be catalogued?","How should interstellar objects be linked?"],"resources":{"spec":"/models/things/publications/thing-q2855300/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q2855300/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T13:11:21Z","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}}