Marinus (crater)
Encyclopedia
Marinus is a lunar
crater
that is located near the southeastern limb of the Moon
. At this location it is viewed at an oblique angle from the Earth
, limiting the amount of detail that can be observed. It lies due north of the slightly larger and dark-floored crater Oken
. To the east is the northern part of the Mare Australe
.
This is a considerably worn crater, although it retains its generally circular formation. A pair of smaller craters overlies most of the south-southeastern rim. Attached to the northwestern rim is Marinus R, and the crater intrudes into Marinus B to the west. Within the crater, the floor is nearly level and has a slightly lower albedo
than its surroundings. The interior surface is marked by a number of tiny craterlets and dimples, as is the rim and inner wall.
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 near the southeastern limb 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...
. At this location it is viewed at an oblique angle from the Earth
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...
, limiting the amount of detail that can be observed. It lies due north of the slightly larger and dark-floored crater Oken
Oken (crater)
Oken is a lunar crater near the southeastern limb of the Moon. It is normally visible from the Earth, but is foreshortened and within the region of the surface that is subject to libration...
. To the east is the northern part of the Mare Australe
Mare Australe
Mare Australe is a lunar mare located in the southeastern hemisphere of the Moon. It is 603 kilometers in diameter, overlapping the near and far sides of the Moon. Smooth, dark volcanic basalt lines the bottom of the mare...
.
This is a considerably worn crater, although it retains its generally circular formation. A pair of smaller craters overlies most of the south-southeastern rim. Attached to the northwestern rim is Marinus R, and the crater intrudes into Marinus B to the west. Within the crater, the floor is nearly level and has a slightly lower albedo
Albedo
Albedo , or reflection coefficient, is the diffuse reflectivity or reflecting power of a surface. It is defined as the ratio of reflected radiation from the surface to incident radiation upon it...
than its surroundings. The interior surface is marked by a number of tiny craterlets and dimples, as is the rim and inner wall.
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 Marinus.| Marinus | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 39.9° S | 73.2° E | 27 km |
| B | 39.6° S | 74.8° E | 59 km |
| C | 38.0° S | 73.5° E | 37 km |
| D | 38.3° S | 79.4° E | 51 km |
| E | 36.2° S | 76.7° E | 17 km |
| F | 41.3° S | 74.8° E | 17 km |
| G | 40.4° S | 76.6° E | 21 km |
| H | 40.2° S | 77.7° E | 16 km |
| J | 39.6° S | 71.0° E | 10 km |
| M | 37.5° S | 80.8° E | 26 km |
| N | 37.6° S | 78.4° E | 16 km |
| R | 38.0° S | 75.3° E | 44 km |