The neglected member of the
Gang of Four,
Furnerius sports what is arguably the best high mag view. It lacks the symmetry
and balance of Petavius,
but offers up a rille of its own (Rima
Furnerius), a complex rumpled floor, all manner of well-formed
craterlets, and a large crater off-center. The arrangement of this
wealth is only appreciated in the best seeing, as there is something of
just about every size and shape -- almost a microcosm of the moon in one
crater.