Ryder is a
crater on the
far side of the
Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width ...
. It is located in a patch of higher
albedo
Albedo (; ) is the measure of the diffuse reflection of solar radiation out of the total solar radiation and measured on a scale from 0, corresponding to a black body that absorbs all incident radiation, to 1, corresponding to a body that refl ...
surface material to the east of the larger
Roche
F. Hoffmann-La Roche AG, commonly known as Roche, is a Swiss multinational healthcare company that operates worldwide under two divisions: Pharmaceuticals and Diagnostics. Its holding company, Roche Holding AG, has shares listed on the SIX S ...
–
Pauli
Pauli is a surname and also a Finnish male given name (variant of Paul) and may refer to:
*Arthur Pauli (born 1989), Austrian ski jumper
* Barbara Pauli (1752 or 1753 - fl. 1781), Swedish fashion trader
*Gabriele Pauli (born 1957), German politic ...
crater pair. The name for this crater was officially approved at the
IAU
The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach ...
general assembly in 2006.
This circular-rimmed crater lies along the eastern rim of a larger formation that is most likely the remains of an old, worn impact. Less than a crater diameter to the west of Ryder is the 24-km-diameter satellite crater Pauli E. Ryder is an oblique impact, and a coherent, layered piece of the lunar crust lies on its side on the eastern side of the crater.
[Motomaro Shirao, Charles A. Wood, 2011, ''The Kaguya Lunar Atlas: The Moon in High Resolution'', Plate 92: Ryder. Springer Publications]
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{{Authority control
Impact craters on the Moon