99+ day(s) ago
|5000*(1.2^(Current # Planets -1))
You also get a 10% bonus to scanner rating if you are not in DP
credit to spacecowboy
enderwiggin also posted
with `e` being a constant with value: 2.71828183
and `X` being the Xth planet you want to explore...
which is what he believed the equation was, it is also accurate enough for use.