WASP-5b

WASP-5b
Size comparison of WASP-5b with Jupiter.
Discovery[1]
Discovered byAnderson et al. (SuperWASP)
Discovery siteSAAO
Discovery dateOctober 31, 2007
Transit
Orbital characteristics[2]
0.02739 ± 0.00039 AU (4,097,000 ± 58,000 km)
Eccentricity<0.012
1.62842953(52) d
Inclination85.8°±1.1°
Semi-amplitude268.2+4.6
−4.2 m/s
StarWASP-5
Physical characteristics[2]
1.175±0.056 RJ
Mass1.590+0.053
−0.052 MJ
Mean density
1.21+0.20
−0.16 g/cm3
28.6 m/s2
2.9 g
Temperature2000±90 K (1,730 °C; 3,140 °F)[3]

WASP-5b is an exoplanet orbiting the star WASP-5 located approximately 1000 light-years away in the constellation Phoenix. The planet's mass and radius indicate that it is a gas giant with a similar bulk composition to Jupiter. The small orbital distance of WASP-5 b around its star means it belongs to a class of planets known as hot Jupiters. The planetary equilibrium temperature would be 1717 K,[1] but the measured dayside temperature is higher, with a 2015 study finding 2500±100 K[4] and a 2020 study finding 2000±90 K.[3]

A study in 2012, utilizing the Rossiter–McLaughlin effect, determined that the planetary orbit is probably aligned with the equatorial plane of the star, with misalignment equal to 12.1+8
−10°.[5]

  1. ^ a b Cite error: The named reference disc was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Bonomo2017 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Wong2020 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Zhou2015 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Albrecht2012 was invoked but never defined (see the help page).