|   From Apollo 17  | |
| Coordinates | 23°18′N29°12′W / 23.3°N 29.2°W | 
|---|---|
| Diameter | 28 km | 
| Depth | 2.2 km | 
| Colongitude | 28° at sunrise | 
| Eponym | Leonhard Euler | 
 
 Euler is a lunar impact crater located in the southern half of the Mare Imbrium, and is named after the Swiss mathematician, physicist and astronomer Leonhard Euler. [1] The most notable nearby feature is Mons Vinogradov to the west-southwest. There is a cluster of low ridges to the southwest, and this formation includes the small crater Natasha and the tiny Jehan. About 200 kilometers to the east-northeast is the comparably sized crater Lambert.
Euler's rim is surrounded by a low rampart, and contain some slight terracing and slumped features on the irregular inner wall surface. In the middle of the small interior floor is a low central peak that formed from the rebound subsequent to the impact. The crater has a minor system of rays that extend for a distance of 200 kilometers.
Euler is a crater of Eratosthenian age. [2]
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Euler.
 
 | Euler | Latitude | Longitude | Diameter | 
|---|---|---|---|
| E | 24.7° N | 34.0° W | 6 km | 
| F | 21.2° N | 27.9° W | 6 km | 
| G | 20.7° N | 27.4° W | 4 km | 
| H | 25.3° N | 28.6° W | 4 km | 
| J | 22.3° N | 31.5° W | 4 km | 
| L | 21.4° N | 28.9° W | 4 km | 
The following craters have been renamed by the IAU.
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