| 词条 | De Morgan (crater) |
| 释义 |
| image = De Morgan crater 4090 h1.jpg | image_size = | caption = Lunar Orbiter 4 image | coordinates = {{coord|3.3|N|14.9|E|globe:moon_type:landmark|display=inline,title}} | diameter = 10 km | depth = 1.8 km | colong = 345 | eponym = Augustus De Morgan }}De Morgan is a small lunar impact crater that is located in the central region of the Moon, midway between the crater D'Arrest two crater diameters to the south, and Cayley to the north. Its diameter is 9.7 km. It is named after British logician Augustus De Morgan.[1] This crater is circular and bowl-shaped, with a small interior floor at the midpoint between the conical, sloping inner wall. References1. ^{{gpn|1443}} {{refbegin}}
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| first = Ewen A. | last = Whitaker | authorlink = Ewen Whitaker | date = 1999 | title = Mapping and Naming the Moon | publisher = Cambridge University Press | isbn = 978-0-521-62248-6 | ref = harv
| first = Peter T. | last = Wlasuk | date = 2000 | title = Observing the Moon | publisher = Springer | isbn = 978-1-85233-193-1 | ref = harv{{refend}} External links
Other articles
1 : Impact craters on the Moon |
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