Dorsa on Mercury
2 named features carry the IAU descriptor Dorsum — a ridge on Mercury, out of 184 in the mapped Solar System.
Named
2
of 606 named places on Mercury — 0.3%
Largest
374 km
Schiaparelli Dorsum
Median size
367 km
Across the 2 with a measured diameter
Named between
1976–1976
IAU approval dates
How dorsa on Mercury get their names
The IAU assigns each feature class on each world a naming theme. Across the 2 dorsa with a recorded origin, one category covers them all, led by Italy.
Italy2
All 2 dorsa on Mercury
Every one has its own page, on the surface it sits on.
Dorsa elsewhere in the Solar System
The same descriptor is used on 7 other worlds, for 182 more features.