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WASP-2b is an extrasolar planet orbiting the star WASP-2 located about 500 light years away in the constellation of Delphinus. It was discovered via the transit method, and then follow up measurements using the radial velocity method confirmed that WASP-2b was a planet. The planet's mass and radius indicate that it is a gas giant with a similar bulk…
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| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| WASP-2b | Argument of periastron | 267+11 −86 | 1.00 | infobox |
| WASP-2b | Detection method | Transit | 1.00 | infobox |
| WASP-2b | Discovered by | Cameron et al. (SuperWASP) | 1.00 | infobox |
| WASP-2b | Discovery date | September 25, 2006 | 1.00 | infobox |
| WASP-2b | Discovery site | SAAO | 1.00 | infobox |
| WASP-2b | Eccentricity | <0.013 | 1.00 | infobox |
| WASP-2b | Inclination | 84.81 ± 0.17° | 1.00 | infobox |
| WASP-2b | Mass | 0.892+0.027 −0.013 MJ | 1.00 | infobox |
| WASP-2b | Mean density | 0.701+0.041 −0.005 g cm−3 | 1.00 | infobox |
| WASP-2b | Mean radius | 1.060+0.024 −0.008 RJ | 1.00 | infobox |
| WASP-2b | Orbital period (sidereal) | 2.15222216 ± 0.00000013 d | 1.00 | infobox |
| WASP-2b | Semi-amplitude | 156.5±13 m/s | 1.00 | infobox |
| WASP-2b | Semi-major axis | 0.0308 +0.0004 −0.0002 AU | 1.00 | infobox |
| WASP-2b | Star | WASP-2 A | 1.00 | infobox |
| WASP-2b | Surface gravity | 3.279 ± 0.036 g | 1.00 | infobox |
| WASP-2b | Temperature | 1286 ± 17 K | 1.00 | infobox |
| WASP-2b | Time of periastron | 2,456,031.78981±0.000075 | 1.00 | infobox |
| WASP-2b | is a | extrasolar planet orbiting the star WASP-2 located about 500 light years away in the constellation of Delphinus | 0.90 | text |
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