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| Coordinates | 18°12′S 1°54′W / 18.2°S 1.9°W |
|---|---|
| Diameter | 96 km |
| Depth | 3.6 km |
| Colongitude | 3° at sunrise |
| Eponym | Abū Ishāq Ibrāhīm al-Zarqālī |
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Arzachel is a relatively young lunar impact crater located in the highlands in the south-central part of the visible Moon, close to the zero meridian (the visible center of the Moon). It lies to the south of the crater Alphonsus, and together with Ptolemaeus further north the three form a prominent line of craters to the east of Mare Nubium. The smaller Alpetragius lies to the northwest, and Thebit is to the southwest along the edge of the mare.