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An extinct comet is a comet that has expelled most of its volatile ice and has little left to form a tail and coma. In a dormant comet, rather than being depleted, any remaining volatile components have been sealed beneath an inactive surface layer.
Nature of extinct comets, Extinct comets & Distinction between comets and asteroids
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comet extinct comets dormant may volatile asteroids coma asteroid nucleus also distinction tail due small solar transition close rather outgassing
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Extinct comet | is a | comet that has expelled most of its volatile ice and has little left to form a tail and coma | 0.90 | text |
| nitrogen | instance of | When volatile materials | 0.80 | text |
| water | instance of | When volatile materials | 0.80 | text |
| carbon dioxide | instance of | When volatile materials | 0.80 | text |
| ammonia | instance of | When volatile materials | 0.80 | text |
| hydrogen | instance of | When volatile materials | 0.80 | text |
| methane in the comet nucleus have evaporated away | instance of | When volatile materials | 0.80 | text |
| all that remains is an inert rock or rubble pile | instance of | When volatile materials | 0.80 | text |
| C/2001 OG108 | instance of | Comets | 0.80 | text |
| Extinct comet | related to Distinction between comets and asteroids | When | 0.60 | section |
| Extinct comet | related to Distinction between comets and asteroids | Solar System | 0.60 | section |
| Extinct comet | related to Distinction between comets and asteroids | IAU | 0.60 | section |
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