Rosenberger is an old lunar impact crater in the southeastern part of the Moon. It was named after German astronomer Otto August Rosenberger.
This crater is located in a region rich with prominent craters. The slightly smaller Vlacq is nearly attached to the northwestern outer rim of Rosenberger. Other nearby craters of note include Biela to the east, Hagecius to the south-southeast, and Nearch to the south-southwest. Due west past Vlacq is Hommel.
On the lunar geologic timescale, this crater dates to the Pre-Nectarian epoch. It has been heavily eroded by a history of impacts, so that the outer rim has become rounded and somewhat indistinct. As a result, the crater possesses only a shallow rise along the rim edge, and it nearly forms a circular depression in the surface. The satellite crater Rosenberger D, which is about 50 kilometers in diameter, intrudes into the southern rim of Rosenberger. A number of smaller, worn impact craters lie along the rest of the rim and inner wall.
The interior floor of this crater forms a relatively level surface that is marked by several small craterlets. To the south-southeast of the midpoint is the worn remains of a small crater. At the midpoint there is a low central peak joined to a small craterlet to the north.
Satellite craters By convention, these features are shown on lunar maps by placing the letter on the side of the crater midpoint that is closest to Rosenberger.
Rosenberger LatitudeLongitudeDiameterA53.5° S47.0° E49 kmB51.7° S46.1° E33 kmC52.1° S42.1° E47 kmD57.5° S42.9° E50 kmE59.3° S43.2° E11 kmF56.0° S40.6° E6 kmG53.9° S41.4° E9 kmH55.0° S46.5° E12 kmJ52.9° S43.3° E22 kmK54.5° S47.7° E18 kmL52.6° S44.6° E9 kmN54.3° S44.1° E8 kmS55.8° S42.6° E14 kmT56.5° S43.1° E8 kmW58.7° S42.4° E32 km
References Table 8.3.
Sources