page_title: Naonobu (crater)
hierarchical_section_title: Naonobu (crater)
caption_attribution_description: English: Oblique view of Bilharz (top), Atwood (lower left), and Naonobu (lower right), Mare Fecunditatis, on the moon, facing west. Brightness and contrast modified slightly.
context_page_description: Naonobu is a small lunar impact crater named after Japanese mathematician Ajima Naonobu. 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. Naonobu and Atwood are separated by only a few kilometres.
  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.
context_section_description: Naonobu is a small lunar impact crater named after Japanese mathematician Ajima Naonobu. 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. Naonobu and Atwood are separated by only a few kilometres.
  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.
caption: Oblique view of Bilharz (top), Atwood (lower left), and Naonobu (lower right), from Apollo 11
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