Coordinates: Sky map 00h 04m 11.1s, −47° 21′ 38.3214″
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Spectrum of WASP-96b, taken by the James Webb Space Telescope
Discovery dateOctober 2013
Orbital characteristics
0.0453±0.0013 AU
3.4252602±0.000027 days
Inclination85.6±0.2 °
Physical characteristics
Mean radius
1.20±0.06 RJ
Mass0.48±0.03 MJ
Temperature1285 K

WASP-96b is a gas giant exoplanet. Its mass is 0.48 Jupiters. It is 0.0453 AU from the class G star WASP-96, which it orbits every 3.4 days. It is about 1,120 light-years away from Earth, in the constellation Phoenix. It was discovered in 2013 by the Wide Angle Search for Planets (WASP).

WASP-96b's spectrum is one of the items featured in the initial science release from the James Webb Space Telescope.[2] The spectrum confirmed the presence of water, as well as providing evidence for "clouds and hazes" within the planet's atmosphere.[3] Prior to this discovery, WASP-96b was thought to be free of clouds.[4][5]

WASP-96b orbits its Sun-like star WASP-96 every 3.5 Earth days at a distance just one-ninth of the distance between Mercury and the Sun.[3]

In July 2022, the atmospheric spectrum from James Webb was released as one of the first scientific images.[6]

While the light curve released confirms properties of the planet that had already been determined from other observations – the existence, size, and orbit of the planet – the transmission spectrum revealed previously hidden details of the atmosphere: the unambiguous signature of water, indications of haze, and evidence of clouds that were suspected based on prior observations.[7]

See also[edit]


  1. ^ Hellier, Coel; Anderson, D. R.; Cameron, A. Collier; Delrez, L.; Gillon, M.; Jehin, E.; Lendl, M.; Maxted, P. F. L.; Pepe, F.; Pollacco, D.; Queloz, D.; Ségransan, D.; Smalley, B.; Smith, A. M. S.; Southworth, J.; Triaud, A. H. M. J.; Udry, S.; West, R. G. (2013), "Transiting hot Jupiters from WASP-South, Euler and TRAPPIST: WASP-95b to WASP-101b", Monthly Notices of the Royal Astronomical Society, 440 (3): 1982–1992, arXiv:1310.5630, Bibcode:2014MNRAS.440.1982H, doi:10.1093/mnras/stu410
  2. ^ Cesari, Thaddeus (2022-07-11). "NASA Shares List of Cosmic Targets for Webb Telescope's First Images". NASA. Archived from the original on 2022-07-12. Retrieved 2022-07-12.
  3. ^ a b "NASA's Webb Reveals Steamy Atmosphere of Distant Planet in Detail". 11 July 2022. Retrieved 12 July 2022.
  4. ^ Jorgenson, Amber (2018-05-08). "WASP-96b: the cloudless exoplanet". Astronomy.com. Retrieved 2022-07-08.
  5. ^ McGruder, Chima D.; López-Morales, Mercedes; Kirk, James; Espinoza, Néstor; Rackham, Benjamin V.; Alam, Munazza K.; Allen, Natalie; Nikolov, Nikolay; Weaver, Ian C.; Ortiz Ceballos, Kevin; Osip, David J.; Apai, Dániel; Jordán, Andrés; Fortney, Jonathan J. (2022), "ACCESS: Confirmation of a Clear Atmosphere for WASP-96b and a Comparison of Light Curve Detrending Techniques", The Astronomical Journal, 164 (4): 134, arXiv:2207.03479, Bibcode:2022AJ....164..134M, doi:10.3847/1538-3881/ac7f2e, S2CID 250334756
  6. ^ Garner, Rob (2022-07-11). "NASA's Webb Reveals Steamy Atmosphere of Distant Planet in Detail". NASA. Retrieved 2022-07-15.
  7. ^ Samra, D.; Helling, Ch.; Chubb, K. L.; Min, M.; Carone, L.; Schneider, A. D. (2023), "Clouds form on the hot Saturn JWST ERO target WASP-96b", Astronomy & Astrophysics, 669: A142, arXiv:2211.00633, Bibcode:2023A&A...669A.142S, doi:10.1051/0004-6361/202244939, S2CID 253244425

External links[edit]

Media related to WASP-96 b at Wikimedia Commons