Das (crater)
Encyclopedia
Das is a lunar
impact crater
on the far side of the Moon
. It is located to the northwest of the walled plain Chebyshev
. To the southwest of Das is the irregular crater Mariotte
, and Von der Pahlen
lies to the east-northeast.
This crater has a sharp-edged rim that is not overlaid by any craters of note. It is roughly circular in shape, with slight bulges to the west and northwest. The inner walls have slumped toward the uneven interior floor, leaving a steeper slope near the rim.
This crater lies at the center of a faint ray system
. The higher albedo
ejecta is continuous out to a distance of nearly two crater diameters, then forms wispy rays particularly to the northwest. These rays may overlap a second system to the east-southeast.
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...
impact 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...
on the far 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 is located to the northwest of the walled plain Chebyshev
Chebyshev (crater)
Chebyshev is a large lunar 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.The outer rim of this walled...
. To the southwest of Das is the irregular crater Mariotte
Mariotte (crater)
Mariotte is an elongated crater that is located on the far side of the Moon. This formation is located about one crater diameter to the southwest of the smaller Das. This crater is longer to the southeast by about an extra 5 km, giving this feature an egg-shaped outline. The outer rim is...
, and Von der Pahlen
Von der Pahlen (crater)
Von der Pahlen is an eroded lunar impact crater that lies on the far side of the Moon from the Earth. It is located about one crater diameter to the south-southwest of the crater Strömgren. Farther to the south is the larger Chebyshev, and to the west-southwest lies Das.This crater has been heavily...
lies to the east-northeast.
This crater has a sharp-edged rim that is not overlaid by any craters of note. It is roughly circular in shape, with slight bulges to the west and northwest. The inner walls have slumped toward the uneven interior floor, leaving a steeper slope near the rim.
This crater lies at the center of a faint ray system
Ray system
A ray system comprises radial streaks of fine ejecta thrown out during the formation of an impact crater, looking a bit like many thin spokes coming from the hub of a wheel. The rays can extend for lengths up to several times the diameter of their originating crater, and are often accompanied by...
. The higher 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...
ejecta is continuous out to a distance of nearly two crater diameters, then forms wispy rays particularly to the northwest. These rays may overlap a second system to the east-southeast.
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 Das.| Das | Latitude | Longitude | Diameter |
|---|---|---|---|
| G | 26.9° S | 135.2° W | 32 km |