Green (lunar crater)

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Green
Green crater AS16-M-0349.jpg
Lunar crater Green from Apollo 16. NASA photo.
Coordinates 4°06′N 132°54′E / 4.1°N 132.9°E / 4.1; 132.9Coordinates: 4°06′N 132°54′E / 4.1°N 132.9°E / 4.1; 132.9
Diameter 65 km
Depth Unknown
Colongitude 228° at sunrise
Eponym George Green
Oblique view from Apollo 11, mainly showing differences in color resulting from albedo, rather than color differences from sun angle

Green is a lunar impact crater on the Moon's far side. It lies just to the west of the huge walled plain Mendeleev, and is nearly joined with the west-northwestern edge of the crater Hartmann.

Description[edit]

The crater has not been significantly eroded although a few tiny craterlets lie along the edge and inner wall. The perimeter is nearly circular, but has an outward bulge along the eastern side with some indications of a landslip. The inner sides display some terrace structures, particularly to the northeast. At the midpoint of the relatively level interior floor is a central ridge. The floor is more level along the western half, with some low rises in the east. There are only a few tiny craterlets on the interior.

Naming[edit]

Oblique view of the central peak from Apollo 10

The crater is named after the mathematician and physicist George Green. Prior to naming in 1970,[1] this crater was known as Crater 216.[2]

Its owes no relation to the name of the crater on Mars as it is named after another figure.

Satellite craters[edit]

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

Green Latitude Longitude Diameter
M 0.9° N 132.9° E 37 km
P 1.0° N 131.8° E 21 km
Q 2.8° N 131.7° E 16 km
R 3.4° N 131.0° E 33 km

Green M crater has a ray system and is consequently mapped as part of the Copernican system.[3]

Notes[edit]

  1. ^ Green, Gazetteer of Planetary Nomenclature, International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN)
  2. ^ Lunar Farside Chart (LFC-1A)
  3. ^ Stratigraphy of Lunar Craters, Don E. Wilhelms and Charles J. Byrne, January 23, 2009

References[edit]

External links[edit]