Numbered Homeworld: Averted. As we mentioned way back in Naming Your Colony World, inhabited systems generally do get named objects, if only because they’re easier to remember. Even uncontacted alien homeworlds get names, often a pronounceable transliteration of whatever the local name is, out of some respect for local sensibilities… and ease of memory/reference.
(Yes, this implies that Vonis Prime isn’t really called Vonis Prime…)
This is a companion discussion topic for the original entry at https://eldraeverse.com/2015/04/29/trope-a-day-numbered-homeworld