Hayn (crater)

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Hayn
Hayn crater LROC WAC.jpg
LRO image
Coordinates 64°42′N85°12′E / 64.7°N 85.2°E / 64.7; 85.2 Coordinates: 64°42′N85°12′E / 64.7°N 85.2°E / 64.7; 85.2
Diameter 87 km
Depth Unknown
Colongitude 279° at sunrise
Eponym Friedrich Hayn

Hayn is a lunar impact crater that lies next to the northeast limb of the Moon. This location restricts the amount of detail that can be viewed from the Earth, as the western inner side is permanently hidden from sight. Observation of this crater can also be affected by libration, which can completely hide this crater from sight.

This crater lies across the northwestern rim of the walled plain Bel'kovich, to the north of the Mare Humboldtianum. It is otherwise relatively isolated from other named craters, with the nearest being Cusanus to the northwest.

This is a young crater with a rim and interior that have not yet been significantly eroded. It has a circular but somewhat uneven rim and an inner wall containing a number of terraces. The southern rim is slightly more pronounced in height where it joins the heavily worn rim of Bel'kovich. There is also an outer rampart beyond the rim that is more extensive to the southwest. Of the rim of Bel'kovich to the east of Hayn there is little sign, and the ground to the east is not dissimilar to the other terrain surrounding the crater. The crater has a ray system, and is consequently mapped as part of the Copernican System. [1]

The interior floor is relatively flat compared to the terrain surrounding the crater. A system of several ridges lie near the interior midpoint, with a wide valley running north–south that divides the range in half. There are also smaller lateral valleys, and all told there are some half dozen peaks. The remainder of the floor also contains several smaller hills, particularly just to the west of the central peaks.

LRO image of Hayn Hayn-crater-large 0.jpg
LRO image of Hayn

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 Hayn.

HaynLatitudeLongitudeDiameter
A62.9° N70.5° E54 km
B65.2° N64.1° E25 km
C65.0° N88.0° E13 km
D65.5° N62.0° E20 km
E67.1° N66.4° E42 km
F68.0° N84.0° E59 km
G67.2° N85.6° E21 km
H63.4° N68.5° E14 km
J66.7° N64.2° E39 km
L64.4° N68.0° E27 km
M62.9° N66.5° E7 km
S68.0° N66.1° E10 km
T68.4° N74.4° E7 km

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Dziewulski (crater) lunar crater

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Das (crater) lunar crater

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Larmor (crater) lunar crater

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References

  1. The geologic history of the Moon, 1987, Wilhelms, Don E.; with sections by McCauley, John F.; Trask, Newell J. USGS Professional Paper: 1348. Plate 11: Copernican System (online)