Aetilc:Glossary
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Jump to navigationJump to search- The minimum distance of separation for stars for planets to form and stay in a stable orbit around a star is about 0.8LY for types A through O, 0.5LY for types K through F and 0.35LY for smaller stars. For brown dwarf stars, their mass is too low and only requires about 0.175LY mean separation to allow planets to form and stay in a stable orbit.
- A low mass star needs at least 0.08 Solar Mass to start a nuclear reaction by fusing hydrogen into helium. This is the boundary separating a sub-stellar object from a star.
- A high mass sub-stellar object requires at least 65 Jupiter Mass to start fusing lithium and may continue doing so for just over a hundred million years.
- A low mass sub-stellar object needs a minimum of 13 Jupiter Mass to undergo nuclear fusion of deuterium into helium-3. The object may continue burning its supply of deuterium for less than a hundred million years.
- A very low mass sub-stellar object may start a nuclear reaction by fusing a fictional substance called hydrogium when it is at least 8 Jupiter Mass and maybe able to sustain nuclear reaction for up to a billion years.