However , the minimum mass nebula capable of terrestrial planet formation can only form 1 -- 2 M cores at the distance of Jupiter ( 5 AU ) within 10 million years .
This enhances the mass of planetesimals fourfold .
The minimum mass nebula capable of terrestrial planet formation can only form 1 -- 2 M cores at the distance of Jupiter ( 5 AU ) within 10 million years .
This enhances the mass of planetesimals fourfold .