Coordinates | 56°42′S11°24′E / 56.7°S 11.4°E |
---|---|
Diameter | 68 km |
Depth | 3.3 km |
Colongitude | 349° at sunrise |
Eponym | Karl G. J. Jacobi |
Jacobi is a lunar impact crater that is located in the southern highlands on the near side of the Moon. It lies southeast of the crater Lilius, with Cuvier to the north-northwest and Baco to the northeast. The crater is 68 kilometers in diameter and 3.3 kilometers in depth. It is from the Pre-Nectarian period, 4.55 to 3.92 billion years ago. [1]
This crater has a worn rim that is overlain by several craters along the southern face, including Jacobi J, and a pair on the northern rim. The result is an outer rim that appears flattened along the northern and southern faces. The larger of the craters on the north rim, Jacobi O, forms a member of a chain of craters that form a rough line across the interior floor from northeast to southwest. The central part of this chain in particular forms a merger of several tiny craters at the midpoint of the floor. The remainder of the floor is level, perhaps as a result of erosion or deposited material. [2]
The overlapping crater triplets of Jacobi F, Jacobi E, and Jacobi G form a line to the south of Jacobi crater. [2] The crater was named after the 19th-century Prussian-Jewish mathematician Carl Gustav Jacob Jacobi by the International Astronomical Union in 1935. [1]
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Jacobi. [3]
Jacobi | Latitude | Longitude | Diameter |
---|---|---|---|
A | 58.5° S | 16.0° E | 28 km |
B | 54.4° S | 13.9° E | 14 km |
C | 59.8° S | 10.6° E | 35 km |
D | 60.8° S | 10.6° E | 21 km |
E | 58.5° S | 11.8° E | 24 km |
F | 58.5° S | 9.6° E | 42 km |
G | 58.4° S | 13.9° E | 42 km |
H | 58.5° S | 10.6° E | 9 km |
J | 58.0° S | 10.3° E | 19 km |
K | 56.7° S | 10.8° E | 9 km |
L | 55.4° S | 15.4° E | 9 km |
M | 57.8° S | 12.1° E | 10 km |
N | 56.3° S | 11.8° E | 8 km |
O | 55.7° S | 11.9° E | 17 km |
P | 57.3° S | 13.8° E | 15 km |
Q | 55.8° S | 14.0° E | 4 km |
R | 55.3° S | 13.8° E | 5 km |
S | 57.5° S | 14.9° E | 5 km |
T | 56.0° S | 15.2° E | 6 km |
U | 55.0° S | 13.2° E | 7 km |
W | 56.0° S | 10.8° E | 7 km |
Z | 59.1° S | 11.9° E | 5 km |
Cleomedes is a prominent lunar impact crater located in the northeast part of the visible Moon, to the north of Mare Crisium. It was named after Greek astronomer Cleomedes. It is surrounded by rough ground with multiple crater impacts. The irregular crater Tralles intrudes into the northwest rim. To the east is Delmotte. North of Cleomedes is a triple-crater formation with Burckhardt occupying the center.
Abulfeda is a lunar impact crater located in the central highlands of the Moon. To the northeast is the crater Descartes, and to the south-southeast is Almanon. To the north is the crater Dollond. A chain of craters named the Catena Abulfeda runs between the southern rim of Abulfeda and the north rim of Almanon, then continues for a length of 210 kilometers across the Rupes Altai. The crater was named for 14th century Kurdish historian Ismael Abul-fida.
Mersenius is a lunar impact crater that is located to the west of the Mare Humorum, in the southwestern part of the Moon. To the southwest is the crater Cavendish, and to the south-southeast lies Liebig. Mersenius is 84 kilometers in diameter and 2.3 kilometers deep. It is from the Nectarian period, 3.92 to 3.85 billion years ago.
Almanon is a lunar impact crater that lies in the rugged highlands in the south-central region of the Moon. It was named after Abbasid Caliph and astronomer Al-Ma'mun. It is located to the south-southeast of Abulfeda, and to the north-northeast of the smaller crater Geber. The crater chain designated Catena Abulfeda forms a line between the south rim of Abulfeda and the north rim of Almanon, continuing for a length of about 210 kilometers to the Rupes Altai scarp.
Mutus is a lunar impact crater that is located in the rugged southern part of the Moon. It lies to the north-northeast of the larger crater Manzinus, and some distance to the south of Hommel. It is 78 kilometers in diameter and 3.7 kilometers deep. It is from the Pre-Nectarian period, 4.55 to 3.92 billion years ago.
De La Rue is the remnant of a lunar impact crater, or possibly several merged craters, creating a formation sometimes called a walled plain. It lies in the northeastern part of the Moon on the near side, and so appears foreshortened due to its location. This formation lies to the north-northwest of the prominent crater Endymion, just beyond the eastern extreme of Mare Frigoris. The crater Strabo intrudes into the northern part of De La Rue's northern rim, and the smaller Thales is attached to the northwestern part of the wall.
Curtius is a lunar impact crater that is located in the southern part of the Moon. From the Earth the crater appears foreshortened, making it more difficult to observe detail. Nevertheless, this is a large crater that can be readily found in even small telescopes. Curtius is located within one crater diameter of the still-larger Moretus to the southwest. To the northeast is the smaller Pentland. Curtius is 95 kilometers in diameter and 6.8 kilometers deep. It is from the Nectarian period, 3.92 to 3.85 billion years ago.
Capuanus is a lunar impact crater that lies along the southern edge of the Palus Epidemiarum. It was named after Italian astronomer F. Capuano di Manfredonia. The outer rim is eroded and indented by lesser crater impacts, with notches in the north, west, and southern parts of the rim. The interior floor has been resurfaced by basaltic lava, which is connected to the surrounding lunar mare by a narrow, crater-formed gap in the northern rim. Dotting the floor of the crater are a number of domes, which are believed to have formed through volcanic activity.
Gauss is a large lunar impact crater, named after Carl Friedrich Gauss, that is located near the northeastern limb of the Moon's near side. It belongs to a category of lunar formations called a walled plain, meaning that it has a diameter of at least 110 kilometers, with a somewhat sunken floor and little or no central massif. Due to its location, this crater appears considerably foreshortened when viewed from the Earth, and its visibility is affected by libration.
Casatus is a lunar impact crater that is located near the southern limb of the Moon. The north-northeast rim of the crater overlies a portion of the slightly larger crater Klaproth. Along the western rim, Casatus A intrudes somewhat into the interior, producing an inward-bowing rim. To the southeast of Casatus is Newton.
Darwin is a lunar impact crater of the type categorised as a walled plain. It lies in the southeastern part of the Moon, and is sufficiently close to the limb to appear significantly foreshortened when viewed from the Earth. Attached to its southern rim is Lamarck. To the northeast is the dark-floored crater Crüger.
Chebyshev is a large lunar impact crater that lies in the southern hemisphere on the far side of the Moon. The somewhat smaller crater Langmuir is intruding into the east-southeastern rim of Chebyshev, forming a chain of large craters with Brouwer on Langmuir's eastern rim.
Mendeleev is a large lunar impact crater that is located on the far side of the Moon, as seen from the Earth. The southern rim of this walled plain just crosses the lunar equator. Intruding into the eastern rim of Mendeleev is the crater Schuster. Nearly on the opposite side, the smaller Hartmann intrudes into west-southwestern rim.
Pasteur is a large lunar impact crater, approximately 233 kilometers in diameter, belonging to the category termed a walled plain. It was named after French chemist and microbiologist Louis Pasteur. It lies on the far side of the Moon as seen from the Earth, just beyond the eastern limb. The vicinity of this crater is occasionally brought into view from Earth due to librations, although not much detail can be seen.
Schwarzschild is a large lunar impact crater, approximately 211 kilometers (131 mi) in diameter. It is located in the northern part of the Moon's far side. The nearest craters of note are Seares to the northeast, and Gamow to the southeast. It was named after German physicist and astronomer Karl Schwarzschild (1873–1916).
De Sitter is a lunar impact crater that is located near the northern limb of the Moon, to the north of the Baillaud–Euctemon crater pair. Due to its location, this crater appears very foreshortened when viewed from the Earth, limiting the detail that can be viewed. The crater also receives sunlight at a low angle, when it is on the sunlit side.
Dyson is a lunar impact crater, 63 kilometers in diameter, that lies on the far side of the Moon, past the northwest limb. It is located in the northern part of the surface, to the northwest of the crater Coulomb, and east of van't Hoff.
Faye is a heavily eroded lunar impact crater in the rugged southern highlands of the Moon. It is named after French astronomer Hervé Faye. It is attached to the northeastern rim of the crater Delaunay, with Donati located just a few kilometers to the northeast. It forms part of a chain of craters of increasing size to the southwest that continues with La Caille and ends with the walled plain Purbach.
Kinau is a small, eroded lunar impact crater that is located in the low southern latitudes of the Moon. It lies to the southeast of the crater Jacobi, and about equally far to the north-northwest of Pentland. It is 42 kilometers in diameter and two kilometers deep. It may be from the Pre-Nectarian period, 4.55 to 3.85 billion years ago.
Ibn Firnas is a lunar impact crater on the far side of the Moon. Attached to the exterior of its southwestern rim is the prominent crater King. Only a few kilometers to the north, separated by a rugged stretch of terrain, is the larger crater Ostwald.