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An exoplanet or extrasolar planet is a planet outside the Solar System. The first confirmed detection of an exoplanet was in 1992 around a pulsar, and the first detection around a main-sequence star was in 1995. A different planet, first detected in 1988, was confirmed in 2003. In 2016, it was recognized that the first possible evidence of an exoplanet…
History, History of detection & General features
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planets star planet exoplanets stars habitable system around earth zone orbit first planetary mass could water jupiter orbiting detection solar
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Gemini Planet Imager | instance of | and widely separated from their parent stars.Specially designed direct-imaging instruments | 0.80 | text |
| VLT-SPHERE | instance of | and widely separated from their parent stars.Specially designed direct-imaging instruments | 0.80 | text |
| and SCExAO will image dozens of gas giants | instance of | and widely separated from their parent stars.Specially designed direct-imaging instruments | 0.80 | text |
| but the vast majority of known extrasolar planets have only been detected through indirect methods.Indirect methodsTransit method If a planet crosses | instance of | and widely separated from their parent stars.Specially designed direct-imaging instruments | 0.80 | text |
| but the vast majority of known extrasolar planets have only been detected through indirect methods | instance of | and widely separated from their parent stars.Specially designed direct-imaging instruments | 0.80 | text |
| LOFAR | instance of | The magnetic field is estimated to be about one-tenth as strong as Jupiter's.The magnetic fields of exoplanets are thought to be detectable by their auroral radio emissions with… | 0.80 | text |
| although they have yet to be found | instance of | The magnetic field is estimated to be about one-tenth as strong as Jupiter's.The magnetic fields of exoplanets are thought to be detectable by their auroral radio emissions with… | 0.80 | text |
| .mw-parser-output .template-chem2-su | instance of | Forms of magnesium oxide | 0.80 | text |
| WASP-76b | instance of | but follow-up observations may confirm these exomoons.The detection of sodium in hot Jupiters | 0.80 | text |
| HD 189733 b or WASP-49b is likely due to a Io-like exomoon around these planets.AtmospheresAtmospheres have been detected around several exoplanets | instance of | but follow-up observations may confirm these exomoons.The detection of sodium in hot Jupiters | 0.80 | text |
| HD 189733 b or WASP-49b is likely due to a Io-like exomoon around these planets | instance of | but follow-up observations may confirm these exomoons.The detection of sodium in hot Jupiters | 0.80 | text |
| the greenhouse effect may introduce unknown complications | instance of | and because factors | 0.80 | text |
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