WASP-10b

WASP-10b is an extrasolar planet discovered in 2008 by SuperWASP using the transit method. It takes about 3 days to orbit around WASP-10. Follow-up radial velocity observations showed that it is three times more massive than Jupiter, while the transit observations showed that its radius is only 8% larger than Jupiter's, giving the planet a density more similar to the Moon than a normal gas giant.^[1][2] It is currently the only confirmed planet around WASP-10, as WASP-10c is still unconfirmed.^[3]

WASP-10b

Size comparison of WASP-10b with Jupiter.
Discovery
Discovered by	Cameron et al. (SuperWASP)
Discovery site	SAAO
Discovery date	April 1, 2008
Detection method	Transit
Orbital characteristics
Semi-major axis	0.0371+0.0014 −0.0013 AU
Eccentricity	0.057+0.011 −0.005
Orbital period (sidereal)	3.0927616+1.12E-5 −1.82E-5 d
Inclination	86.8+0.6 −0.5
Argument of periastron	2.737+0.194 −0.166
Star	WASP-10
Physical characteristics
Mean radius	1.08 ± 0.02 RJ
Mass	3.06+0.23 −0.21 MJ
Mean density	3.22 g/cm3
Surface gravity	6.93 g
Temperature	1300

See also

• SuperWASP