[Space] Hot Jupiters

[Agemegos]

Marcy et al [2005] is a paper reviewing the extrasolar planets discovered to date.

According to the abstract, the incidence of 'hot Jupiters' among F, G, and K stars is 1.2% ± 0.2%. Using the Star System Generation procedure in GURPS Space you get such an 'Epistellar gas giant' on a roll of 15–18 on 3d6. Which is 9.3% of all systems.