Jacobi (crater)
Encyclopedia
Jacobi is a lunar
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.
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 mid-point of the floor. The remainder of the floor is level, perhaps as a result of erosion or deposited material.
The overlapping crater triplet of Jacobi F, Jacobi E, and Jacobi G form a line to the south of Jacobi crater. The crater itself is named for Carl Jacobi, a 19th-century German
mathematician.
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
crater
Impact crater
In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...
that is located in the southern highlands on the near side of the Moon
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
. It lies southeast of the crater Lilius
Lilius (crater)
Lilius is a lunar impact crater that is located in the rugged southern highlands of the Moon. It lies to the north of the crater Zach, and south-southwest of Cuvier. Just to the southeast is the slightly larger Jacobi...
, with Cuvier
Cuvier (crater)
Cuvier is a lunar crater on the southern part of the Moon's near side. It is attached to the east-southeast rim of the unusually shaped formation Heraclitus. To the northeast is the crater Clairaut....
to the north-northwest and Baco
Baco (crater)
Baco is a lunar impact crater that lies in the rugged southern highlands on the near side of the Moon. The rim and inner wall has been eroded and worn by countless minor impacts since the original formation of the crater. As a result any terraces have been worn smooth and the rim is overlaid by...
to the northeast. The crater is 68 kilometers in diameter and 3.3 kilometers in depth. It is from the Pre-Nectarian
Nectarian
The Nectarian Period of the lunar geologic timescale runs from 3920 million years ago to 3850 million years ago. It is the period during which the Nectaris Basin and other major basins were formed by large impact events...
period, 4.55 to 3.92 billion years ago.
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 mid-point of the floor. The remainder of the floor is level, perhaps as a result of erosion or deposited material.
The overlapping crater triplet of Jacobi F, Jacobi E, and Jacobi G form a line to the south of Jacobi crater. The crater itself is named for Carl Jacobi, a 19th-century German
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...
mathematician.
Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Jacobi.| 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 |