WASP-7 b
Extrasolar planet in the constellation Microscopium From Wikipedia, the free encyclopedia
WASP-7 b is an extrasolar planet discovered in 2008. This 5-day period planet, orbiting a round the star WASP-7, is slightly smaller than Jupiter, roughly the same mass and more dense.[2]
![]() Size comparison of WASP-7 b with Jupiter. | |
Discovery | |
---|---|
Discovered by | Cameron et al. (SuperWASP) |
Discovery site | SAAO |
Discovery date | April 1, 2008 |
Transit | |
Orbital characteristics | |
0.0618+0.0014 −0.0033 AU | |
Eccentricity | 0.0173+0.0009 −0.0011[1] |
4.954658+5.5e-5 −4.3e-5 d | |
Inclination | 89.6+0.4 −0.9 |
Star | WASP-7 |
Physical characteristics | |
0.915+0.046 −0.04 RJ | |
Mass | 0.96+0.12 −0.18 MJ |
Mean density | 1.66 g/cm3[citation needed] |
3.03 g | |
Temperature | 1393+80 −82 K[1] |
A study in 2012, utilizing the Rossiter–McLaughlin effect, determined the planetary orbit is strongly misaligned with the equatorial plane of the star, with misalignment equal to 86±8°, making the planetary orbit nearly polar.[3] The orbit is also slightly eccentric, which is surprising given the tidal circularization timescale of below 650 million years.[1]
Physical properties
The measured temperature on the planetary dayside is 1393+80
−82 K.[1] Sodium was detected in the planetary atmosphere in 2022.[4]
See also
References
External links
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