Plana on Mercury
1 named feature carries the IAU descriptor Planum — a high plain or plateau on Mercury, out of 49 in the mapped Solar System.
Named
1
of 606 named places on Mercury — 0.2%
Largest
735 km
Catuilla Planum
Median size
735 km
Across the 1 with a measured diameter
Named between
2017–2017
IAU approval dates
How plana on Mercury get their names
The IAU assigns each feature class on each world a naming theme. Across the 1 plana with a recorded origin, one category covers them all, led by Inca.
Inca1
All 1 plana on Mercury
Every one has its own page, on the surface it sits on.
Plana elsewhere in the Solar System
The same descriptor is used on 4 other worlds, for 48 more features.