Valles on Io
1 named feature carries the IAU descriptor Vallis — a valley on Io, out of 249 in the mapped Solar System.
Named
1
of 260 named places on Io — 0.4%
Largest
166 km
Tawhaki Vallis
Median size
166 km
Across the 1 with a measured diameter
Named between
2006–2006
IAU approval dates
How valles on Io get their names
The IAU assigns each feature class on each world a naming theme. Across the 1 valles with a recorded origin, one category covers them all, led by New Zealand.
New Zealand1
All 1 valles on Io
Every one has its own page, on the surface it sits on.
Valles elsewhere in the Solar System
The same descriptor is used on 4 other worlds, for 248 more features.