Subframes

LO5-005H1, H2, and H3 can be located on LO4-008M. Sub- o

frames LO5-021H1, H2, and H3 are assembled into a single e frame that is shown on LO5-021M. A full set of subframes are £ shown for LO2-075 and LO2-033, and can be located by refer- < ence to their respective medium-resolution photos. ole

Korolev

Kèeler

Crookes

Heaviside

Gagarin

Zwicky Geiger

Aitken

South Pole Aitken B.

De Vries

WWi Ising 0 Plumme*

:umford

Leeuwenhoek Oppenheimer

Chebyshév

Jules Verne

Leibni

Roche wFinsen Von Karman

Garavito

Alder

Minkowski

JPoincare Cailleux

Lippmann

Bhabfra

Lemaitre

Planck

Clementine: Northern South Pole-Aitken Region

This Clementine mosaic, in a sinusoidal projection, is in the northern portion of the South Pole-Aitken Basin (SP-A Basin). The dashed line is near the rim of the basin. The Apollo Basin was named to honor the Apollo missions that explored the Moon, including their photography of the far side, taken from the Apollo Command Modules, starting with Apollo 10. Many craters in and near the Apollo Basin are named after Apollo astronauts and those who have lost their lives in the two Space Shuttle disasters (see page 66).

Key: Features inside or near the SP-A Basin (Early Imbrian or older)

Pre-Nectarian

Apollo Basin, 505 km Ingenii Basin, 560km Jules Verne, 143 km Lippmann, 160km Planck, 314km Poincare, 31 9km SP-A Basin, 2500 km Vertregt, 187 km

Von Karman, 180 km Zwicky, 150 km

Nectarian

Bose, 91 km Chebyshev, 178 km Lemaitre, 133 km Korolev Basin, 440 km Leeuwenhoek, 125 km

Oppenheimer, 208 km Roche, 1 60 km Van De Graaff, 233 km

Early Imbrian

Alder, 77 km Pauli, 84 km Rumford, 61 km

Clementine: Northern South Pole-Aitken Region

The interior of the South Pole-Aitken Basin is darker than the surrounding area because the large craters and basins within it have been flooded with mare material that has been widely distributed by subsequent impacts. The large, fainter overlying rays come from the Copernican crater Jackson (71 km, 22.7°N, 163.1°W). This basin is the deepest on the Moon - 6.8km deep.

Key: Features inside or near the SP-A Basin (Late Imbrian or younger)

Late Imbrian Eratotosthenian Copernican

Aitken, 135 km Birkeland, 82 km Crookes, 49 km

DeVries, 59km Finsen, 72km Das, 38km

Holetscheck, 38 km Leibnitz, 245 km Zelinsky, 53 km

Clementine: Apollo Basin Area

Key: Early Imbrian or older

Pre-Nectarian

Apollo Basin, 505 km

Nectarian

Barringer, 68 km Bose, km

Oppenheimer, 208 km

Early Imbrian

Borman, 50 km Rumford, 61 km

Apollo astronauts who are honored by naming craters in and near the Apollo Basin are Edwin E. Aldrin, Jr., William A. Anders, Neil A. Armstrong, Frank Borman, Roger B. Chaffee, Michael Collins, Virgil I. Grissom, James A. Lovell, Jr., and Edward H. White, II. Chaffee, Grissom, and White died in the pad fire of Apollo 1.

Those honored who died in the launch disaster of Challenger are Gregory B. Jarvis, Sharon Christa McAuliffe (the civilian school teacher), Ronald Erwin McNair, Ellison Shoji Onizuka, Judith Resnick, Francis Richard Scobee, and Michael John Smith.

Those honored who died in the Columbia re-entry disaster of Space Shuttle Columbia are Michail Phillip Anderson,David McDowell Brown, Kalpana Chawla, Laurel Blair Saltan Clark, Rick Douglas Husband, William Cameron McCool, and flan Ramon.

Rummer

Barringer

McAuliffe

Jarvis

Resnik

Oppenheimer

Lovell

McNair

Onizuka

Anders

Borman

Chaffee

\Miite

Leavitt

Grissom

Paschen

Mohorovicic

Rnk <T\ Lacus D0K KJ Oblivionis

Sniadeoki Q

Rumford o

Walker

_Makautov

Nishina

Lodygin

Wising

Bhabha

Sternfeld Stromgren

O Das Mariotte „ Kieymenov ^hebvshev

Langmuir

Buff on i

Stoney

Karrer

Minkowski

Clementine: Apollo Basin Area

Key: Late Imbrian or younger

Late Imbrian Eratosthenian

Dryden, 51km Bok, 104 km

Maksutov, 83 km Lovell, 34 km

White, 39km

If the Apollo Basin (about 500 km in diameter) had formed on the near side of the Moon rather than the far side, it would have been entirely flooded with mare. However, the thicker crust on the far side has limited the amount of flooding.

The dark, roughly circular spot in the center of this image is the mare flooding the inner ring of the Apollo Basin. The arc of mare in the southwestern portion of the trough between the inner ring and the rim has probably risen just in that sector because the floor of the South Pole-Aitken Basin, which was the target surface for the Apollo impactor, is lower there. The edge of the ejecta blanket of the Apollo Basin can be seen as a shadow near the left edge of this photo.

Southwest Far Side: Western Sector

Pre-Nectarian

Planck, 314km

Nectarian

Sikorsky-Rittenhouse Basin, 310km

Early Imbrian

Schrodinger Basin, 320km

Late Imbrian

Hale, 83 km

Erotosthenian

Grotrian, 37 km

Mare Basalt has pressed upward here in the Eratosthenian Period, and beyond the mare are dark plains units, another means of resurfacing. These may be caused by fire fountains or may be due to mare that has flooded and receded, leaving a very thin layer of basalt whose darkness has been dimmed by the gardening effect of later bombardment.

These units appear to have modified the ejecta blankets of Planck and Schrodinger. Vallis Schrodinger and Vallis Planck extend beyond the ejecta blanket of Schrodinger as strings of small secondary craters, possibly accompanied by finely divided material. Both valleys are more prominent in the low east-west lighting of the Lunar Orbiter photos of this area.

Priestley

Moulton echner

Sikorsky

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