Izsak is a small lunar impact crater that is located on the Moon’s far side, hidden from view from the Earth. It lies about half-way between the walled plains Fermi to the northeast and Milne to the southwest. Due south of Izsak is the larger crater Schaeberle. Izsak is a circular, nearly symmetric crater formation with a sharp-edged rim that has received little erosion. At the midpoint of the interior floor is a small central peak.
Lunar Orbiter 3 image
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| Coordinates | 23.3°S 117.1°E |
|---|---|
| Diameter | 30.83 km |
| Depth | Unknown |
| Colongitude | 243° at sunrise |
| Eponym | Imre Izsák |

Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Izsak.
| Feature | Latitude | Longitude | Diameter | Ref |
|---|---|---|---|---|
| Izsak T | 23.2° S | 114.8° E | 13.04 km | WGPSN |
