Borealis Planitia
Borealis Planitia /bɒriːˈeɪɪs pləˈnɪʃiə/ is a large plain on Mercury[1] with a smooth floor, thought to be similar to a lunar mare.[2] It is centered at 73.4° N, 79.5° W. The name is Latin for Northern Plain.
|  Part of Borealis Planitia, photographed by MESSENGER | |
| Planet | Mercury | 
|---|---|
| Coordinates | 73.4°N 79.5°W | 
| Quadrangle | Borealis | 
| Eponym | Latin for "Northern Plain" | 

Typical Borealis Planitia, north of the crater Monteverdi
References
    
- "Borealis Planitia". Gazetteer of Planetary Nomenclature. IAU/NASA/USGS. Retrieved 7 March 2023.
- Topographic Features and Surface History, Atlas of Mercury (NASA SP-423), 1976
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