Maskelyne (crater)

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Maskelyne
Maskelyne crater as10-34-5151.jpg
Apollo 10 Hasselblad Camera image
Coordinates 2°12′N30°06′E / 2.2°N 30.1°E / 2.2; 30.1 Coordinates: 2°12′N30°06′E / 2.2°N 30.1°E / 2.2; 30.1
Diameter 22 km
Depth 2.5 km
Colongitude 330° at sunrise
Eponym Nevil Maskelyne
Oblique view of Maskelyne from Apollo 10 Maskelyne crater AS10-29-4296HR.jpg
Oblique view of Maskelyne from Apollo 10

Maskelyne is a solitary lunar impact crater that lies in the southeast part of the Mare Tranquillitatis. Its diameter is 22 km. It was named after British astronomer Nevil Maskelyne. [1] The outer rim has a somewhat polygonal shape, although it is generally circular. The inner walls are terraced and there is a low central rise at the midpoint of the floor.

Contents

The landing site of the Apollo 11 expedition is located about 250 kilometers to the west-southwest. To the northeast are Wallach and Aryabhata. To the southeast is the bright Censorinus. To the south are the lunar mountains informally known as Duke Island and Boot Hill. There are sinuous rilles southwest and west of Maskelyne - these were informally named Sidewinder and Diamondback by the Apollo 10 crew [2] and referred to as such by later missions, especially Apollo 11.

Satellite craters

Oblique view facing west from Apollo 11, showing Maskelyne at center, with Maskelyne B above center, Maskelyne G near top center, Maskelyne X and Y in upper left, and Maskelyne K at right. Maskelyne crater AS11-41-6086.jpg
Oblique view facing west from Apollo 11, showing Maskelyne at center, with Maskelyne B above center, Maskelyne G near top center, Maskelyne X and Y in upper left, and Maskelyne K at right.

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Maskelyne.

MaskelyneLatitudeLongitudeDiameter
A0.1° N34.0° E29 km
B2.0° N28.9° E9 km
C1.1° N32.7° E9 km
D2.5° N32.5° E33 km
F4.2° N35.3° E21 km
G2.4° N26.7° E6 km
J3.2° N32.7° E4 km
K3.3° N29.6° E5 km
M7.8° N27.9° E8 km
N5.4° N30.3° E5 km
P0.5° N34.1° E10 km
R3.0° N31.3° E13 km
T0.0° S36.6° E5 km
W0.9° N29.2° E4 km
X1.3° N27.4° E4 km
Y1.8° N28.1° E4 km

The following craters have been renamed by the IAU.

Satellite craters of Maskelyne Maskelyne sattelite craters map.jpg
Satellite craters of Maskelyne

Related Research Articles

<span class="mw-page-title-main">Aryabhata (crater)</span> Feature on the moon

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 crater was previously identified as Maskelyne E before being named by the IAU in 1979. Maskelyne itself is to the southwest.

<span class="mw-page-title-main">Wallach (crater)</span> Feature on the moon

Wallach is a tiny lunar impact crater located in the eastern Mare Tranquillitatis. It was named after German chemist and Nobel laureate Otto Wallach in 1979. It is a circular, bowl-shaped feature with a negligible interior floor; the inner walls just slope down to the midpoint of the crater. Wallach is located to the northeast of the crater Maskelyne, near some low ridges in the lunar mare. It was previously identified as Maskelyne H before being given a name by the IAU.

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References

  1. "Maskelyne (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. Apollo 10 Flight Journal, Part 19, We is down among them, Corrected Transcript and Commentary by David Woods, Robin Wheeler, and Ian Roberts. Last update: 2017-02-10