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S
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935
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E
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132 km
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''Unknown''
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268
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is a large
Lunar Crater that is located on the
Far Side of the
Moon , just beyond the eastern limb. This region of the surface is sometimes brought into view of the
Earth due to
Libration , and at such times this crater can be seen when it is illuminated by sunlight. However it is best viewed from
Orbit . This crater is located along the southeastern edge of the
Mare Smythii , to the northeast of
Brunner Crater . To the northeast of Hirayama is
Wyld Crater .
This is a worn and eroded crater with multiple impacts overlapping the outer rim and the interior floor. 'Hirayama K' has broken across the rim to the southeast and 'Hirayama C' cross the northeastern rim. Along the southwestern outer edge is 'Hirayama Q'. The small 'Hirayama T' is located along the western inner wall, and attached to its eastern edge is 'Hirayama S'. The crater 'Hirayama Y' is adjacent to the northern inner walls of Hirayama and covers a significant part of the northern interior floor. Several smaller craters lie within the floor, including 'Hirayama N' in the south. The floor otherwise forms a relatively level surface within the inner wall.
By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Hirayama crater.
