Kata Kunci Pencarian:
- Observatorium Berlin
- Daftar kawah di Bulan, L-N
- Johann Heinrich von Mädler
- Mädler (disambiguation)
- Montes Riphaeus
- Mond
- History of the center of the Universe
- Mars
- Riphean Mountains
- Montes Carpatus
- Johann Friedrich Julius Schmidt
- Johann Joseph Schmeller
