Naonobu (crater)

It is located on the eastern Mare Fecunditatis, to the northwest of the prominent crater Langrenus, and it forms a triple-crater formation with the adjacent Atwood to the south and Bilharz just to the southwest.

The interior of this crater has been flooded with basaltic lava, leaving a relatively flat interior and a reduced outer rim.

There is no central peak, but a small crater lies just to the southwest of the midpoint.

A similar crater lies across the western interior of the rim.

This crater was previously designated Langrenus B before being renamed by the IAU in 1976.

Oblique view of Bilharz (top), Atwood (lower left), and Naonobu (lower right), from Apollo 11