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WASP-48b is an extrasolar planet orbiting the star WASP-48 in the constellation Cygnus. The planet was detected using the transit method by the SuperWASP team, which published its discovery in 2011. It orbits its host star in just 2.14 days with a semi-major axis of 0.034 AU[3] and has an equilibrium temperature of 1956±54 K.[4] The dayside temperature was measured to be around 2300 K in 2018.[2]

WASP-48b
Orbital characteristics
Semi-major axis
0.03444 AU (5,152,000 km)
Orbital period (sidereal)
2.14363592±0.0000046[1] d
Inclination80.09 +0.55−0.55
StarWASP-48
Physical characteristics
Mean radius
1.485 ± 0.052RJ[2]
Mass0.984±0.085[1] MJ
Temperature2300

    The planetary atmosphere transmission spectrum is gray and featureless,[5] having no noticeable Rayleigh scattering.[4]


    References


    1. Turner, Jake D.; et al. (2016). "Ground-based near-UV observations of 15 transiting exoplanets: Constraints on their atmospheres and no evidence for asymmetrical transits". Monthly Notices of the Royal Astronomical Society. 459 (1): 789–819. arXiv:1603.02587. Bibcode:2016MNRAS.459..789T. doi:10.1093/mnras/stw574.
    2. Thermal emission of WASP-48b in the Ks-band, 2018, arXiv:1804.01913
    3. Enoch, B.; et al. (2011). "WASP-35b, WASP-48b, and HAT-P-30b/WASP-51b: Two New Planets and an Independent Discovery of a Hat Planet". The Astronomical Journal. 142 (3). 86. arXiv:1104.2827. Bibcode:2011AJ....142...86E. doi:10.1088/0004-6256/142/3/86.
    4. Physical properties of the HAT-P-23 and WASP-48 planetary systems from multi-colour photometry, 2015, arXiv:1503.00762
    5. The GTC exoplanet transit spectroscopy survey VII An optical transmission spectrum of WASP-48b, 2017, arXiv:1707.03345


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