Doppelmayer (crater)

Doppelmayer

Lunar Orbiter 4 image
Coordinates	28°29′S41°31′W / 28.48°S 41.51°W / -28.48; -41.51
Diameter	65.08 km (40.44 mi)
Depth	1.6 km (0.99 mi)
Colongitude	41° at sunrise
Eponym	Johann Gabriel Doppelmayr

Selenochromatic Image of the Mare Humorum area with some selenochromatic landmarks

Doppelmayer is the remains of a lunar impact crater that lies on the southwest edge of Mare Humorum. To the south-southeast is another flooded crater designated Lee, and to the southeast is Vitello. Just to the east-northeast of Doppelmayer lies the nearly submerged crater Puiseux.

The rim of Doppelmayer is nearly round, but is worn and eroded. The most intact section is the southwest half, while in the northeast the rim descends beneath the mare, leaving only a slight rise in the surface. The interior has been partially flooded by lava, leaving a large raised ridge in the center. A small range of hills curves to the west and north from the southern end of this ridge, forming a feature that is nearly concentric with the crater's outer rim. The floor of the crater that is not covered by lava is fractured. ^[1]

It was named in 1935 by the IAU after the German mathematician and astronomer Johann Gabriel Doppelmayr. ^[2]

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 Doppelmayer.

Doppelmayer	Latitude	Longitude	Diameter
A	29.8° S	43.1° W	10 km
B	30.5° S	45.4° W	11 km
C	30.3° S	44.1° W	7 km
D	31.8° S	45.8° W	9 km
G	28.9° S	44.9° W	15 km
H	28.8° S	43.2° W	10 km
J	24.5° S	41.1° W	6 km
K	24.0° S	40.7° W	5 km
L	23.6° S	40.5° W	4 km
M	29.5° S	43.9° W	15 km
N	29.2° S	44.6° W	5 km
P	29.1° S	42.7° W	8 km
R	29.2° S	43.2° W	4 km
S	28.1° S	43.6° W	4 km
T	25.9° S	43.2° W	3 km
V	29.8° S	45.6° W	8 km
W	33.6° S	45.6° W	8 km
Y	33.1° S	46.1° W	10 km
Z	33.0° S	46.4° W	10 km

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. (online)
2. "Doppelmayer (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.

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