Baillaud (crater)
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Baillaud is a lunar impact crater that is located near the north limb of the Moon. Nearby craters include the irregular Meton formation to the southwest, and Petermann further to the east. Due to its
Lunar Orbiter 4 image
Oblique view of Baillaud from Lunar Orbiter 4
Full Moon 2010
Lunar geologic timescale
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The lunar geologic timescale divides the history of Earth's Moon into five generally recognized periods: the Copernican, Eratosthenian, Imbrian, Nectarian, and Pre-Nectarian. The boundaries of this ti
Baillaud (crater)
…and Petermann further to the east. Due to its location, Baillaud appears oblong because of foreshortening along the line of sight to Earth. On the lunar geologic timescale, this formation dates to the Late Imbrian period. The rim of the crater has been eroded and worn by a long history of impacts, leaving a hilly ridge…
Ancient rift valleys – closeup (artist's concept)