Krieger (crater)

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Krieger
Krieger crater AS15-M-2478.jpg
Apollo 15 image
Coordinates 29°01′N45°37′W / 29.02°N 45.61°W / 29.02; -45.61
Diameter 22.87 km (14.21 mi)
Depth 1.1 km
Colongitude 46° at sunrise
Eponym Johann N. Krieger
Grieger area in selenochromatic format holding some normal (yellow)/pyroclastic(red) selenochromatic landmarks Oceanus Procellarum Si Barbero Zetta Ferruggia.jpg
Grieger area in selenochromatic format holding some normal (yellow)/pyroclastic(red) selenochromatic landmarks
Another Apollo 15 image AS15-90-12272.jpg
Another Apollo 15 image

Krieger is a lunar impact crater on the eastern part of the Oceanus Procellarum. It is located to the north-northwest of the flooded crater Prinz, and north-northeast of the prominent ray crater Aristarchus. To the northwest lies the small Wollaston. The crater was formally named in 1935. [1]

Contents

In the past the floor of Krieger has been flooded by basaltic lava, leaving only a low, circular, somewhat polygonal ridge formed by the rim. The southern rim is broken across by the small Van Biesbroeck, and there is a small gap in the western rim. A meandering rille leads away from this break toward the northwest.

Krieger is a crater of Upper (Late) Imbrian age. [2]

Nearby craters

Two tiny craters next to the eastern rim have been designated Rocco and Ruth. Rocco was previously designated as Krieger D before being named by the IAU.

CraterLongitudeLatitudeDiameterName source
Rocco28.9° N45.0° W5 km Italian masculine name
Ruth28.7° N45.1° W3 km Jewish feminine name

The nearby surface to the southwest contains a number of rilles belonging to the Rimae Aristarchus and Rimae Prinz rille systems. Further to the east-southeast are the Montes Harbinger mountains.

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 Krieger.

KriegerLatitudeLongitudeDiameter
C27.7° N44.6° W4 km

The following craters have been renamed by the IAU.

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References

  1. "Krieger". Gazetteer of Planetary Nomenclature. IAU/NASA/USGS . Retrieved 6 September 2023.
  2. The geologic history of the Moon. USGS Professional Paper 1348. By Don E. Wilhelms, John F. McCauley, and Newell J. Trask. U.S. Government Printing Office, Washington: 1987. Table 11.2.