Moigno is a
lunar impact crater
An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact crater ...
that is located in the northern part of the
Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...
's near side. It lies just to the west of the crater
Arnold, and southeast of
Neison. The low rim of this crater is worn and eroded, until it is nearly level with the surrounding terrain. The perimeter is only roughly circular, and there are notches along the inner face of the western side. The interior floor has been resurfaced, leaving a level, nearly featureless plain covering the base of this depression. In the southern end of the floor is the small crater Moigno C.
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 Moigno.
References
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{{Commons, Image:Lunar_crater_Moigno.png
Impact craters on the Moon