WASP-178b

WASP-178b / KELT-26b
Discovery[1][2]
Discovered byHellier et al. / Rodríguez Martínez et al.
Discovery dateNovember / December 2019 (announced)
Transit method
Designations
CD−42° 10057b, HD 134004 b, TIC 160708862 b, TOI-1337 b, TYC 7829-2324-1 b, 2MASS J15090488-4242178 b[3]
Orbital characteristics[1]
0.0558±0.0010 AU
Eccentricity0
3.3448285±0.0000012 d
Inclination85.7°±0.6°
Semi-amplitude139±9 m/s
StarWASP-178
Physical characteristics[1]
1.81±0.09 RJ
Mass1.66±0.12 MJ
Mean density
0.37±0.07 g/cm3
Temperature2470±60 K (2,200 °C; 3,990 °F, equilibrium)

WASP-178b, also known as KELT-26b and HD 134004 b, is an ultra-hot Jupiter exoplanet discovered in 2019 orbiting WASP-178, a hot A-type star located about 1,350 light-years (410 parsecs) away in the constellation of Lupus. At over 1.8 times the radius of Jupiter, it is among the largest exoplanets. The planet is tidally locked, heating up one side of the planet to such a degree that silicate rock and metal evaporate. Supersonic winds blow constantly towards the dark, cooler nighttime side, where the vaporized minerals condense and fall as rain.[4]

  1. ^ a b c Cite error: The named reference WASP was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference KELT was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference NASA was invoked but never defined (see the help page).