Maskelyne (crater)
Encyclopedia
Maskelyne is a solitary lunar
crater
that lies in the southeast part of the Mare Tranquillitatis
. The outer rim has a somewhat polygon
al shape, although it is generally circular. The inner walls are terraced and there is a low central rise at the mid-point of the floor.
The landing site of the Apollo 11
expedition is located about 250 kilometers to the west-southwest.
The following craters have been renamed by the IAU
.
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 lies in the southeast part of the Mare Tranquillitatis
Mare Tranquillitatis
Mare Tranquillitatis is a lunar mare that sits within the Tranquillitatis basin on the Moon. The mare material within the basin consists of basalt formed in the intermediate to young age group of the Upper Imbrian epoch. The surrounding mountains are thought to be of the Lower Imbrian epoch, but...
. The outer rim has a somewhat polygon
Polygon
In geometry a polygon is a flat shape consisting of straight lines that are joined to form a closed chain orcircuit.A polygon is traditionally a plane figure that is bounded by a closed path, composed of a finite sequence of straight line segments...
al shape, although it is generally circular. The inner walls are terraced and there is a low central rise at the mid-point of the floor.
The landing site of the Apollo 11
Apollo 11
In early 1969, Bill Anders accepted a job with the National Space Council effective in August 1969 and announced his retirement as an astronaut. At that point Ken Mattingly was moved from the support crew into parallel training with Anders as backup Command Module Pilot in case Apollo 11 was...
expedition is located about 250 kilometers to the west-southwest.
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 Maskelyne.| Maskelyne | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 0.1° N | 34.0° E | 29 km |
| B | 2.0° N | 28.9° E | 9 km |
| C | 1.1° N | 32.7° E | 9 km |
| D | 2.5° N | 32.5° E | 33 km |
| F | 4.2° N | 35.3° E | 21 km |
| G | 2.4° N | 26.7° E | 6 km |
| J | 3.2° N | 32.7° E | 4 km |
| K | 3.3° N | 29.6° E | 5 km |
| M | 7.8° N | 27.9° E | 8 km |
| N | 5.4° N | 30.3° E | 5 km |
| P | 0.5° N | 34.1° E | 10 km |
| R | 3.0° N | 31.3° E | 13 km |
| T | 0.0° S | 36.6° E | 5 km |
| W | 0.9° N | 29.2° E | 4 km |
| X | 1.3° N | 27.4° E | 4 km |
| Y | 1.8° N | 28.1° E | 4 km |
The following craters have been renamed by the IAU
International Astronomical Union
The International Astronomical Union IAU is a collection of professional astronomers, at the Ph.D. level and beyond, active in professional research and education in astronomy...
.
- Maskelyne E — See Aryabhata (crater)Aryabhata (crater)Aryabhata, named after Indian astronomer Aryabhata , is the remnant of a lunar impact crater located in the eastern Mare Tranquillitatis. The crater has been almost submerged by lava-flow, and now only an arc-shaped ridge formed from the eastern half of the rim remains above the lunar mare. This...
. - Maskelyne H — See Wallach (crater)Wallach (crater)Wallach is a tiny lunar impact crater located in the eastern Mare Tranquillitatis. It is a circular, bowl-shaped feature with a negligible interior floor; the inner walls just slope down to the mid-point of the crater. Wallach is located to the northeast of the crater Maskelyne, near some low...
.