Worlds are objects in space ranging from single quarks to supermassive-wormholes. Worlds are separated by a vacuum. a key for how to use the units of measure is shown above the chart bellow
Key: 1,000pg=1μg 1,000μg=1mg 1,000mg=1g 1,000g=1kg 1,000kg=1Mg 1,000Mg=1Gg 1,000Gg=1Tg 1,000Tg=1Eg 1,000Eg=1Zg 1,000Zg=1Yg 1,000Yg=1Rg 1,000Rg=1Qg
The big 4:
the so-called "big 4" is the large 4 classifications for worlds and depend on their gravity.
asteroids 15.6pg-20Zg
moons 90Zg-200Yg
planets 200Yg-24.7Qg
suns 190Qg+
Gaps between "big 4" classifications:
nanoparticles photons and quarks-15.6pg
dwarf moons 20Zg-90Zg
brown dwarfs 24.7Qg-190Qg