Coordinates | 28°29′S41°31′W / 28.48°S 41.51°W |
---|---|
Diameter | 65.08 km (40.44 mi) |
Depth | 1.6 km (0.99 mi) |
Colongitude | 41° at sunrise |
Eponym | Johann Gabriel Doppelmayr |
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]
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 |
Egede is the remains of a lunar impact crater that has been flooded by lava, leaving only the somewhat polygonal circumference of the rim protruding just above the mare. It was named after Dano-Norwegian natural historian Hans Egede. It is located on the southern edge of the Mare Frigoris, to the west of the crater Aristoteles. To the southwest is an arc of low mountains curving between the rims of Aristoteles and Eudoxus. The floor of Egede is flat and nearly featureless, except for a few tiny craterlets, including secondaries from Aristoteles. The surviving rim has a maximum altitude of 0.4 km above the surface.
Letronne is the lava-flooded remnant of a lunar impact crater. It was named after French archaeologist Jean-Antoine Letronne. The northern part of the rim is completely missing, and opens into the Oceanus Procellarum, forming a bay along the southwestern shore. The formation is located to the northwest of the large crater Gassendi.To the west-southwest is the flooded crater Billy, and north-northwest lies the smaller Flamsteed.
Lee is the lava-flooded remnant of a lunar impact crater that lies on an inlet of the Mare Humorum, in the southwestern part of the Moon. It was named after British astronomer John Lee. To the east is the crater Vitello, and just to the north is the lava-flooded crater Doppelmayer.
Prinz is the lava-flooded remains of a lunar impact crater on the Oceanus Procellarum. It was named after German-Belgian astronomer Wilhelm Prinz. The formation lies to the southwest of the prominent crater Aristarchus. To the north-northeast is the flooded crater Krieger.
Thomson is a lunar impact crater that is located within the Mare Ingenii on the far side of the Moon. Just to the northeast is the unusual merged crater formation of Van de Graaff. On the northwest rim of the mare is O'Day, and to the south-southwest is Obruchev on the southern shore of Mare Ingenii.
Archytas is a lunar impact crater that protrudes into the northern edge of Mare Frigoris. To the northwest is the comparably sized crater Timaeus, and the smaller Protagoras lies in the opposite direction to the southeast. Further to the southwest, beyond the opposite edge of the mare, is the dark-floored crater Plato.
Joliot is a large lunar impact crater that lies on the far side of the Moon, just past the eastern limb. At this location it lies in a region of the surface that comes into sight during a favorable libration, although at such times it is viewed from the side. Thus viewing this crater in detail must be done from orbit.
D'Arrest is a lunar impact crater that is located in the lava-flooded region to the west of the Mare Tranquillitatis. It is named after the German astronomer Heinrich Louis d'Arrest. It lies to the southeast of the crater Agrippa and northwest of Delambre. Just to the northeast are the small, bowl-shaped craters De Morgan and Cayley.
Bowditch is a lunar impact crater that lies on the far side of the Moon, just beyond the eastern limb. It is located on a region of the lunar surface that is brought into view due to libration, but at such times the area is viewed from the edge and so not much detail can be observed. It lies just to the north of the small Lacus Solitudinis lunar mare, between the craters Titius to the southwest and Perel'man to the east-northeast.
Baldet is a lunar impact crater that is located on the southern hemisphere on the far side of the Moon. It lies in the lava-flooded region between the craters Cori to the north, Stoney to the southwest, and the worn walled plain Minkowski to the southeast.
Sömmering is the lava-flooded remains of a lunar impact crater on the eastern edge of the Mare Insularum. It was named after German doctor Samuel Thomas von Sömmerring. To the southeast is the crater Mösting, and north of Sömmering lies a similar flooded crater designated Schröter. A rille designated Rima Schröter runs from the southeast of Schröter towards the east of Sömmering's outer rim.
Loewy is a small lunar impact crater that lies along the eastern rim of Mare Humorum, in the southwest part of the Moon's near side. It was named after French astronomer Maurice Loewy. This is a lava-flooded formation that lies to the southwest of the larger, lava-flooded crater Agatharchides. To the southeast is an even larger lava-flooded formation, Hippalus.
Crozier is a lunar impact crater that is located on the southwest edge of Mare Fecunditatis, a lunar mare in the eastern part of the Moon's near side. It lies to the east-northeast of the prominent crater Colombo, and southeast of the small crater Bellot.
Elger is a lunar impact crater that lies along the southern edge of Palus Epidemiarum, the Marsh of Epidemics, in the southwest part of the Moon's near side. To the northeast is the flooded crater Capuanus, and farther to the northwest is Ramsden.
Daubrée is a lunar impact crater that is located to the southwest of the Mare Serenitatis, just to the west-southwest of the crater Menelaus in the Montes Haemus range. The small lunar mare Lacus Hiemalis lies along the southwest rim of Daubrée. The crater was named after French geologist Gabriel A. Daubrée. It was previously designated Menelaus S.
Chevallier is a lunar impact crater that is located in the northeastern part of the Moon's near side, about a crater diameter east-southeast of the prominent crater Atlas. To the south-southeast of Chevallier is the flooded crater Shuckburgh. Chevallier was named by the IAU in 1935.
Cichus is a lunar impact crater that lies in the southwestern part of the Moon, at the eastern edge of Palus Epidemiarum. Just to the northeast and nearly contacting the rim is the lava-flooded crater remnant Weiss. The crater is named after Italian astronomer Cecco d'Ascoli.
Williams is the remnant of a lunar impact crater that lies to the south of the prominent crater Hercules, in the northeastern part of the Moon. The southern rim borders the Lacus Somniorum, a small lunar mare that extends to the south and west. To the southwest is the sharp-rimmed crater Grove.
Weiss is a lunar impact crater along the southern edge of the Mare Nubium. It was named after Austrian astronomer Edmund Weiss. Nearly attached to the southwest rim is the crater Cichus, and Pitatus lies just over one crater diameter to the east-northeast. To the east-southeast lies the eroded Wurzelbauer.
Lebedev is a crater on the far side of the Moon. It is named after Russian Physicist Pyotr Lebedev. It is located at the eastern edge of the irregular feature known as Mare Australe. The crater lies to the southeast of the larger, flooded Lamb, and to the east-northeast of Anuchin. To the southeast of Lebedev lies the smaller crater Cassegrain.