Federov is a tiny lunar impact crater

Impact crater

In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...

 located in the western Mare Imbrium

Mare Imbrium

Mare Imbrium, Latin for "Sea of Showers" or "Sea of Rains", is a vast lunar mare filling a basin on Earth's Moon and one of the larger craters in the Solar System. Mare Imbrium was created when lava flooded the giant crater formed when a very large object hit the Moon long ago...

. It lies east-northeast of the crater Diophantus

Diophantus (crater)

Diophantus is a lunar impact crater that lies in the southwestern part of the Mare Imbrium. It forms a pair with the larger crater Delisle to the north. Diophantus has a wide inner wall and a low central rise. To the north of Diophantus is the sinuous rille designated Rima Diophantus, named after...

, and southeast of Delisle

Delisle (crater)

Delisle is a small lunar crater in the western part of the Mare Imbrium. It lies to the north of the crater Diophantus, and just to the northwest of the ridge designated Mons Delisle. Between Delisle and Diophantus is a sinuous rille named Rima Diophantus, with a diameter of 150 km...

. About 20 kilometers to the south-southeast is the slightly larger formation of Artsimovich

Artsimovich (crater)

Artsimovich is a small lunar impact crater located in the western Mare Imbrium of the Earth's Moon. This is a circular crater forming a cup-shaped excavation in the surface of the lunar mare. To the east is the crater Diophantus and to the northeast lies Delisle. Less than 20 kilometers to the...

.

This crater is slightly elongated and oddly shaped, with a ridge on the northern side. This ridge is about as large around the base as Federov crater, and rises about 0.8 km above the surrounding lunar mare

Lunar mare

The lunar maria are large, dark, basaltic plains on Earth's Moon, formed by ancient volcanic eruptions. They were dubbed maria, Latin for "seas", by early astronomers who mistook them for actual seas. They are less reflective than the "highlands" as a result of their iron-rich compositions, and...

.

External links

• LTO-39B1 Federov — L&PI topographic map
  Topographic map
  A topographic map is a type of map characterized by large-scale detail and quantitative representation of relief, usually using contour lines in modern mapping, but historically using a variety of methods. Traditional definitions require a topographic map to show both natural and man-made features...
  
  of feature and vicinity