Franck (crater)

Franck
Apollo 15 image
Coordinates 22°36′N 35°30′E / 22.6°N 35.5°E / 22.6; 35.5Coordinates: 22°36′N 35°30′E / 22.6°N 35.5°E / 22.6; 35.5
Diameter 12 km
Depth 2.5 km
Colongitude 325° at sunrise
Eponym James Franck

Franck is a small lunar impact crater that lies near the north end of Sinus Amoris, a bay on the northern part of Mare Tranquillitatis. The crater lies just about 20 km southeast of Brewster, and farther to the south of Römer. Franck was previously designated Römer K before being given a unique name by the IAU.

Oblique view from Apollo 15
Franck Crater is to the south of the photo, to the north is Römer and its satellite craters with Römer T being the closest of it located north (Photo from the LRO)

The diameter is 12 km and being about 2,500 meters deep. Also, the area is about 100 km² and its perimeter is over 35 km.

This is a circular, bowl-shaped crater with a sharp rim that has not been significantly eroded. The interior walls slope down to the tiny floor at the midpoint. Just to the north of Franck is a joined pair of smaller craters, and the three nearly form a merged cluster of impacts.

References

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