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&sq=Envato&lang=en&file=File:Macrobius_crater_AS17-M-0296.jpg) Apollo 17 mapping camera image | |
| Coordinates | 21°18′N 46°00′E / 21.3°N 46.0°E |
|---|---|
| Diameter | 63 km |
| Depth | 3.9 km |
| Colongitude | 314° at sunrise |
| Eponym | Macrobius |
Macrobius is a prominent lunar impact crater located to the northwest of the Mare Crisium. Its diameter is 63 km. It was named after ancient Roman writer Macrobius.[1] It lies on the southeast edge of the Lacus Bonitatis, a small lunar mare. The somewhat smaller crater Tisserand lies just to the east.
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The outer wall of Macrobius has a multiply terraced inner surface, with some slumping along the top of the rim. The small satellite crater Macrobius C lies across the western rim, but the wall is otherwise relatively free of significant wear. In the center of the floor is a central mountain complex. There is a low ridge in the western interior, but the remainder of the floor is relatively level.
Macrobius is a crater of Lower (Early) Imbrian age.[2]
- ^ "Macrobius (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
- ^ The geologic history of the Moon. USGS Professional Paper 1348. By Don E. Wilhelms, John F. McCauley, and Newell J. Trask. U.S. Government Printing Office, Washington: 1987. Table 10.2.