WASP-22b
| Exoplanet | List of exoplanets | |
|---|---|---|
 | ||
| Parent star | ||
| Star | WASP-22 | |
| Constellation | Orion | |
| Right ascension | (α) | 03h 31m 16.0s |
| Declination | (δ) | −23° 49′ 11″ |
| Apparent magnitude | (mV) | 12.0 |
| Mass | (m) | 1.1 (± 0.3) M☉ |
| Radius | (r) | 1.13 (± 0.03) R☉ |
| Temperature | (T) | 6000.0 (± 100.0) K |
| Metallicity | [Fe/H] | -0.05 (± 0.08) |
| Orbital elements Epoch J2000 | ||
| Semi-major axis | (a) | 0.04698 (± 0.00037) AU |
| Eccentricity | (e) | 0.0 |
| Orbital period | (P) | 3.5327313 (± 5.8e-06) d |
| Inclination | (i) | 88.26 (± 0.91)° |
| Time of transit | (Tt) | 2455497.39967 (± 0.00025) JD |
| Physical characteristics | ||
| Mass | (m) | 0.617 MJ |
| Minimum mass | (m sin i) | 0.5998 MJ |
| Maximum mass | (m sin i) | 0.62081 MJ |
| Radius | (r) | 1.199 RJ |
| Temperature | (T) | 1298 K |
| Discovery information | ||
| Discovery date | Published December 2010 | |
| Discoverer(s) | Maxted, et. al. | |
| Discovery method | Transit photometry | |
| Discovery site | South African Astronomical Observatory | |
| Discovery status | ||
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
WASP-22b is an extrasolar planet orbiting the Sun-like star WASP-22 300 parsecs (980 ly) in the constellation Orion.[1] This hot Jupiter has an orbit of 3.53 days and a mass of 0.617 MJ was detected by transit via SuperWASP. The system is a hierarchical triple system.[2]
References
- ↑ "CONFIRMED PLANET OVERVIEW PAGE". Nasa Exoplanet Archive. Retrieved 2016-04-26.
- ↑ Maxted, P. F. L.; Anderson, D. R.; Gillon, M.; Hellier, C.; Queloz, D.; Smalley, B.; Triaud, A. H. M. J.; West, R. G.; Wilson, D. M. (2010-01-01). "WASP-22 b: A Transiting "Hot Jupiter" Planet in a Hierarchical Triple System". The Astronomical Journal. 140 (6): 2007. arXiv:1004.1514
. Bibcode:2010AJ....140.2007M. doi:10.1088/0004-6256/140/6/2007. ISSN 1538-3881.
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