Ehrlich (crater)

Ehrlich

Mosaic of oblique Lunar Orbiter 5 images, facing west
Coordinates 40°54′N 172°24′W / 40.9°N 172.4°W / 40.9; -172.4Coordinates: 40°54′N 172°24′W / 40.9°N 172.4°W / 40.9; -172.4
Diameter 30 km
Depth Unknown
Colongitude 173° at sunrise
Eponym Paul Ehrlich

Ehrlich is a small lunar crater named after the German scientist Paul Ehrlich. It is located in the northern hemisphere on the Moon's far side. It lies within a rugged region that has been extensively bombarded by impacts of comparable size. Ehrlich lies about midway between the craters Parsons to the south and the heavily worn Guillaume to the north.

This is a worn crater with features that have become softened and rounded due to bombardment. A pair of small craters are attached to the exterior along the southern rim. The interior floor and inner walls are nearly featureless and there are no impacts of note within the rim.

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 Ehrlich.

Ehrlich Latitude Longitude Diameter
J 40.2° N 170.7° W 25 km
N 39.0° N 173.1° W 19 km
W 42.7° N 174.0° W 26 km
Z 42.2° N 172.4° W 28 km

References

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  • 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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