Green (lunar crater)

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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.


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.


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]


  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


External links[edit]