Further improved planet generation, with a more organic process and additional data points.

• Proto-planetary disk mass fractions (Hydrogen / Helium / Metals) are now implemented.
  
• Proto-planetary disk size is now properly calculated.
  
• Proto-planetary disk lifetime / evaporation are now properly calculated.
  
• Planets will no longer form beyond the Carbon Monoxide Snow Line, at around 30 Kelvin. This region will become a Kuiper Belt equivalent.
  
• Stars now report their mass fractions, metallicity, gravity and escape velocity.
  
• Gas Giant determination now depends on a body's ability to hold on to Molecular Hydrogen, which is properly calculated from the initial rocky body's escape velocity and the equilibrium temperature.
  
• Rocky Cores now use up the actual "metals" mass available in the proto-planetary disk, which properly limits the total mass of rocky cores in the system.
  
• Gas Giant Envelopes now use up the Hydrogen/Helium mass available in the proto-planetary disk, which properly constrains the size of Gas Giants in the system.
  
• Improved the Long Range sensors data on the UI, with separate boxes and more organised information.
  

There's still further we can take this, like calculating how much gas a planetary body can truly accrete during the lifetime of a proto-planetary disk, but I'm going to focus on rocky core temp/spin, magnetic fields, and terrestrial atmospheres next.