Just had a quick look at the sheet, I found a 46 Earth mass water world last night which should nicely fill in the gap between 16 and 112 Earth masses
- HIP 85906 6
Excellent, I'll add it to my itinerary.
I've never seen any mid-range water worlds yet I don't think.
I've found something interesting which clears up (sort of) our long-standing mystery as to why Class II gas giants are worth so much more than other gas giants - it's because they use the same value curve as HMC worlds.
(I know there are much higher mass HMC worlds out there, but I only have data up to about 100 Earth masses.)
In a similar vein, "Standard" gas giants (everything other than Class I and Class II) and water giants share the same value curve as Rocky, Rocky/Ice and Icy worlds.
Here's curves for the gas giants by themselves:
This graph is fairly accurate as to the relative mass ranges of the gas giants.
As the heavier a gas giant is, the hotter it gets, there's a mass cut-off above which, for instance, a Class I gas giant at any distance will become a Class II gas giant purely through its internal heat, and so on.
But even the lightest gas giant can be a Class II, III, IV or V if it is close enough to its star.
This is the somewhat messier plot used to obtain the above, which shows the relative mass ranges of gas giants within the standard curve.
In particular the Water giants fall right at the low mass range, and Ammonia-based life has a smaller and lighter range than Water-based life as I noted somewhere upthread.
This pic shows the curves for those terrestrial planets that have big mass ranges.
And this for the valuable planets that have low mass ranges. I don't have enough data on Rocky/CFT planets yet.
Earth-like worlds still hold the crown for most valuable objects (excepting Sag A*) but it's still possible that a very massive (~1000 Earth mass) Ammonia world could be worth more.