Guillaume
Clementine mosaic
Coordinates45°24′N 173°24′W / 45.4°N 173.4°W / 45.4; -173.4
Diameter57 km
DepthUnknown
Colongitude174° at sunrise
EponymCharles É. Guillaume
Oblique Lunar Orbiter 5 image, facing west

Guillaume is an old lunar impact crater on the Moon's northern hemisphere, and is located on the far side relative to the Earth. It lies just to the southeast of the slightly larger crater Perkin. This is a worn and eroded formation, with features that have been softened and rounded over time. A cluster of small craters covers most of the northeastern rim. Several small craterlets lie along the edge to the south and west. The bowl-like interior is nearly featureless, with only a few small craterlets to mark the surface.

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 Guillaume.

Guillaume Latitude Longitude Diameter
B 47.3° N 172.6° W 26 km
D 46.6° N 170.5° W 26 km
F 45.4° N 169.4° W 33 km
J 43.7° N 170.6° W 17 km

References

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  • Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6.
  • 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.
  • 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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