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| | Moon Crater Messier |
 | | These craters and the rays were probably created by a very narrow-angle grazing impact (1-5 degrees); the main impact projectile created Messier, another piece Messier A, and ejecta the rays. |
 | | Messier B lies north of the large craters, Messier and Messier A, at long=48.0E, lat=2.0S, and is 7km in diameter and its walls are 670m high. |
 | | Nasa description: The ascent stage of the Apollo 16 Lunar Module (LM) approaches the Command/Service modules (CSM) during rendezvous, with a contrasting background of darkness and the moon's Sea of Fertility (Mare Fecundatatis). |
| www.seds.org /messier/xtra/m-crater.html (1000 words) |
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