In the Solar System
Salacia
A large Kuiper belt object with a moon called Actaea, here for its size and for almost nothing else: it has never been resolved into more than a point, its diameter comes from how much heat it radiates, and the mass comes from the moon's orbit. Between them they say it is dark and dense enough to be mostly rock. Whether it counts as a dwarf planet is unsettled, which is the usual state of affairs at this distance.
- Radius
- 423 km
Everything the map shows is worked out in your browser from published orbital data - nothing on it is a stored picture of where things were.