The far right column on the system view is LG Time, which is the number of years required to stabilise a jump point on that body. That is more useful for this purposes than mass. However, terrain, while not immediately mechanically-relevant, does add flavour to the system view, so I don’t want to move it out of sight, especially with the expanded terrain list in v3.0.
However, I do like the idea of putting the LG stabilisation time on the destination list in the Fleet window for stabilisation ships.