apologies for resurrecting the old thread but I just foud an eathlike, ammonia ad water wold in the same system - been here since fist beta and don't remember seeing this before - anyone know of others?
In my ED7K survey, I surveyed 7000 star systems, 1000 of each star class from B to L. Found 70 Earth-like worlds in that survey. Of those 70 worlds, only one was found in the configuration described here:
Thraikoo LQ-X d1-1, which has one terraformable water world, one ELW and one ammonia world - planets 3, 4 and 8, respectively.
I only found one other system which had an ELW-AW combination (without the waterworld):
Lychoitl II-V c18-500
Which makes sense, from a purely statistical point of view. Looking at the overall statistics, the probability of hitting an ELW in my survey was precisely 1 in 100. The probability of hitting an Ammonia World was 1 in 69. The probability of hitting a Water world was much higher, at about 1 in 10. The odds of getting all three at once? Simply multiply the odds together: 1/10 x 1/69 x 1/100 = a 1 in 69000 chance. So finding one in just 7000 samples was pretty lucky. I'm sure
@Orvidius or someone else can come up with data crunched from EDSM to get more accurate statistics from a much larger sample size.
Of course, you can boost your odds of finding these rare combinations by being more discriminating with your star class filtering. You can increase your chances to about 1 in 10000, just by filtering for A and F class stars.
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