Dorsum Zirkel [SEP] located on astronomical body
Dorsum Zirkel
Dorsum Zirkel is a wrinkle ridge at northeast of Mons La Hire in Mare Imbrium on the Moon. It is 193 km long and was named after German geologist Ferdinand Zirkel in 1976.
Two small craters, La Hire A and B, lie on either side of the dorsum. The large crater Lambert is to the southeast, and the smaller McDonald is to the northeast.
Carlini (crater)
Carlini is a small lunar impact crater located in the Mare Imbrium. It was named after Italian astronomer Francesco Carlini. The crater is bowl-shaped with a small central floor. It has a higher albedo than the surrounding mare, making it prominent due to its isolated location. To the south is a wrinkle ridge named Dorsum Zirkel, and farther south lies the peak Mons La Hire.
Satellite craters.
By convention these features are identified on lunar maps by placing the letter on the side