Fossae on Ryugu
2 named features carry the IAU descriptor Fossa — a long, narrow depression on Ryugu, out of 117 in the mapped Solar System.
Named
2
of 13 named places on Ryugu — 15%
Largest
0.6 km
Tokoyo Fossa
Median size
0.44999999999999996 km
Across the 2 with a measured diameter
Named between
2018–2018
IAU approval dates
How fossae on Ryugu get their names
The IAU assigns each feature class on each world a naming theme. Across the 2 fossae with a recorded origin, one category covers them all, led by Japan.
Japan2
All 2 fossae on Ryugu
Every one has its own page, on the surface it sits on.
Fossae elsewhere in the Solar System
The same descriptor is used on 8 other worlds, for 115 more features.