One record per aspect. The origin says what kind of thing each value is; the source says where it came from; the limit says what it cannot tell you.
Representative population
Kuiper Belt is drawn as 6,000 synthetic particles spread over the population's published radial range (30 to 50 AU). No particle corresponds to a real catalogued body.
SourceSpace Time rendering contract
LimitReal members of this population are shown separately when the bright-asteroid layer is on; those follow JPL SBDB elements.
Close-up appearance
Particle size and brightness are chosen for legibility, not scaled from measured albedos.
SourceSpace Time rendering contract
LimitNot a resolved observation.
Description and facts
The short description and the fact list are written by the Space Time authors for orientation. They are not quoted from a catalog field and carry no citation of their own.
SourceSpace Time editorial text
LimitBackground reading is linked under Further reading; it is not the source of the displayed numbers.