Wilhelm (crater)

Short description: Crater on the Moon

Wilhelm

Lunar Orbiter 4 image

Diameter| 107 km
Depth| 3.0 km
Colongitude| 22° at sunrise

Wilhelm is a lunar impact crater in the southern part of the Moon, to the west of the prominent Tycho. Portions of the ray material from Tycho lie across the rim and floor of Wilhelm. Attached to its southern rim is the crater Montanari, while Lagalla is attached to the southwest. To the north-northeast is Heinsius.

This crater is of the type traditionally termed a walled plain. It has a heavily eroded outer rim that is overlain by several smaller craters. Among these are Wilhelm A and Wilhelm K across the southwest rim, and Wilhelm B just to the northwest along the western rim. Wilhelm C intrudes into the north-northeast rim, and Wilhelm D is attached to the northeast outer rim. There is an outward protrusion in the southern rim that extends to contact Montanari.

The interior floor of Wilhelm is relatively level, with a rougher area to the northeast. The remainder is flat and almost featureless except for a few tiny craterlets.

## 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 Wilhelm.

Wilhelm  | Latitude  | Longitude  | Diameter

|
|
|

A  | 44.6° S  | 22.0° W  | 20 km
B  | 43.5° S  | 22.8° W  | 19 km
C  | 41.6° S  | 19.5° W  | 15 km
D  | 41.8° S  | 17.7° W  | 32 km
E  | 44.1° S  | 17.9° W  | 14 km
F  | 42.4° S  | 23.1° W  | 9 km
G  | 42.5° S  | 25.9° W  | 17 km
H  | 42.5° S  | 23.8° W  | 7 km
J  | 41.5° S  | 26.2° W  | 19 km
K  | 44.1° S  | 21.7° W  | 21 km
L  | 40.4° S  | 22.1° W  | 9 km
M  | 44.0° S  | 17.3° W  | 9 km
N  | 43.7° S  | 18.5° W  | 7 km
O  | 43.1° S  | 17.2° W  | 17 km
P  | 40.9° S  | 20.5° W  | 12 km
Q  | 43.2° S  | 18.4° W  | 8 km
R  | 41.3° S  | 21.9° W  | 7 km
S  | 41.7° S  | 21.7° W  | 10 km
T  | 41.3° S  | 20.9° W  | 8 km
U  | 41.4° S  | 20.4° W  | 5 km
V  | 43.9° S  | 19.5° W  | 8 km
W  | 42.5° S  | 20.3° W  | 5 km
X  | 40.9° S  | 19.9° W  | 12 km
Y  | 44.5° S  | 20.9° W  | 5 km
Z  | 44.8° S  | 20.3° W  | 8 km

## References

* Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.
* Blue, Jennifer (July 25, 2007). "Gazetteer of Planetary Nomenclature". USGS. http://planetarynames.wr.usgs.gov/.
* Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.
* Cocks, Elijah E.; Cocks, Josiah C. (1995). Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature. Tudor Publishers. ISBN 978-0-936389-27-1. https://archive.org/details/isbn_9780936389271.
* McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. http://host.planet4589.org/astro/lunar/.
* Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU". Space Science Reviews 12 (2): 136–186. doi:10.1007/BF00171763. Bibcode: 1971SSRv...12..136M.
* Moore, Patrick (2001). On the Moon. Sterling Publishing Co.. ISBN 978-0-304-35469-6. https://archive.org/details/patrickmooreonmo00patr.
* Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3.
* Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.
* Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3. https://archive.org/details/celestialobjects00webb.
* Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6.
* Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.

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