Milne (crater)
Encyclopedia
Milne is a large lunar
crater
that is located in the southern hemisphere on the far side of the Moon
, named after the British mathematician and astrophysicist Edward Arthur Milne
. It lies to the northeast of the Mare Australe
, and southeast of Lacus Solitudinis
.
The formation has been heavily eroded and reshaped by a long history of impacts, leaving a low, irregular ridge line around most of the perimeter. The southern portion of the wall has been obliterated by impacts, and this area is now overlain by the craters Milne M and Milne N.
Although the interior floor is relatively flat, it has been marred by many impacts in the surface. The most prominent of these is the satellite crater Milne K, which is located just to the south of the mid-point. Overlapping the southern rim of K is the smaller Milne L. In the northeast part of the floor is an unusual tight formation of 10–12 small impacts that almost resembles a cluster of grapes.
The crater floor is somewhat irregular in the northwestern part, where the prominent crater Scaliger
intrudes into the outer rim, leaving ejecta across the floor. Other nearby craters include Alden
to the north, Parkhurst
to the west, Schaeberle
to the northeast, and Bjerknes
to the south. Farther to the northeast is the walled plain Fermi
and the impressive Tsiolkovskiy
.
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 hemisphere 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...
, named after the British mathematician and astrophysicist Edward Arthur Milne
Arthur Milne
Edward Arthur Milne FRS was a British astrophysicist and mathematician.- Biography :Milne was born in Hull, Yorkshire, England...
. It lies to the northeast 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...
, and southeast of Lacus Solitudinis
Lacus Solitudinis
Lacus Solitudinis is a small lunar mare on the far side of the Moon. The selenographic coordinates of the lake are 27.8° S, 104.3° E, and it lies within a diameter of 139 km. It forms an arcing feature with the concave side oriented to the northwest...
.
The formation has been heavily eroded and reshaped by a long history of impacts, leaving a low, irregular ridge line around most of the perimeter. The southern portion of the wall has been obliterated by impacts, and this area is now overlain by the craters Milne M and Milne N.
Although the interior floor is relatively flat, it has been marred by many impacts in the surface. The most prominent of these is the satellite crater Milne K, which is located just to the south of the mid-point. Overlapping the southern rim of K is the smaller Milne L. In the northeast part of the floor is an unusual tight formation of 10–12 small impacts that almost resembles a cluster of grapes.
The crater floor is somewhat irregular in the northwestern part, where the prominent crater Scaliger
Scaliger (crater)
Scaliger is a prominent lunar impact crater that is located in the southern hemisphere on the far side of the Moon. It is attached to the northwest rim of the walled plain Milne, and the shared perimeter has reshaped the outer wall of Scaliger slightly, producing a straightened section along the...
intrudes into the outer rim, leaving ejecta across the floor. Other nearby craters include Alden
Alden (crater)
Alden is a lunar crater that lies on the far side of the Moon, between Hilbert to the north-northwest and Milne to the south-southeast. To the south-southwest lies Scaliger....
to the north, Parkhurst
Parkhurst (crater)
Parkhurst is a heavily degraded lunar crater to the northeast of the Mare Australe on the far side of the Moon. To the north-northeast of Parkhurst is the crater Scaliger and to the southwest lies the dark-floored Gernsback. The small lunar mare named Lacus Solitudinis lies due north of...
to the west, Schaeberle
Schaeberle (lunar crater)
Schaeberle is an impact crater on the far side of the Moon. It lies to the northeast of the much larger walled plain Milne. Due north of Schaeberle is the relatively fresh crater Izsak, and an equal distance to the east-northeast lies Zhiritskiy....
to the northeast, and Bjerknes
Bjerknes (lunar crater)
Bjerknes is a lunar impact crater that is located in the southern hemisphere on the rugged far side of the Moon. The crater lies behind the southeastern limb, and beyond the region that is sometimes brought into sight through libration. Thus this crater can not be viewed from Earth, and has only...
to the south. Farther to the northeast is the walled plain Fermi
Fermi (crater)
Fermi is a large lunar crater of the category named a walled plain. It lies on the far side of the Moon and can not be viewed from the Earth. Thus this feature must be viewed from an orbiting spacecraft....
and the impressive Tsiolkovskiy
Tsiolkovskiy (crater)
Tsiolkovskiy is a large lunar impact crater that is located on the far side of the Moon. It lies in the southern hemisphere, to the west of the crater Gagarin, and northwest of Milne. Just to the south is Waterman, with Neujmin to the south-southwest. This feature was discovered on photographs sent...
.
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 Milne.| Milne | Latitude | Longitude | Diameter |
|---|---|---|---|
| K | 32.5° S | 113.1° E | 65 km |
| L | 33.7° S | 112.7° E | 26 km |
| M | 35.7° S | 112.1° E | 54 km |
| N | 35.5° S | 110.8° E | 37 km |
| P | 37.1° S | 107.7° E | 95 km |
| Q | 34.3° S | 107.3° E | 75 km |