Picard (crater)

Picard
	Apollo 17 Mapping camera image
Coordinates	14°34′N 54°43′E / 14.57°N 54.72°E
Diameter	23 km
Depth	2.4 km
Colongitude	306° at sunrise
Eponym	Jean-Félix Picard

Picard is a lunar impact crater that lies in Mare Crisium. The crater is named for 17th century French astronomer and geodesist Jean Picard.^[1] It is the biggest non-flooded crater of this mare, being slightly larger than Peirce to the north-northwest. To the west is the almost completely flooded crater Yerkes. To east of Picard is the tiny Curtis.

Picard is a crater from the Eratosthenian period, which lasted from 3.2 to 1.1 billion years ago.^[2] Inside Picard is a series of terraces that seismologists have attributed to a collapse of the crater floor. It has a cluster of low hills at the bottom.^[3]

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Picard.^[4]

Picard	Coordinates	Diameter, km
K	9°44′N 54°34′E / 9.73°N 54.56°E / 9.73; 54.56 (Picard K)	9
L	10°19′N 54°19′E / 10.32°N 54.31°E / 10.32; 54.31 (Picard L)	7
M	10°13′N 53°57′E / 10.21°N 53.95°E / 10.21; 53.95 (Picard M)	8
N	10°31′N 53°34′E / 10.52°N 53.57°E / 10.52; 53.57 (Picard N)	19
P	8°49′N 53°37′E / 8.82°N 53.62°E / 8.82; 53.62 (Picard P)	8
Y	13°11′N 60°16′E / 13.18°N 60.27°E / 13.18; 60.27 (Picard Y)	4

The following craters have been renamed by the IAU.

Picard G — see Tebbutt.
Picard H — see Shapley.
Picard X — see Fahrenheit.
Picard Z — see Curtis.

References

^ "Picard (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
^ The geologic history of the Moon. USGS Professional Paper 1348. By Don E. Wilhelms, John F. McCauley, and Newell J. Trask. U.S. Government Printing Office, Washington: 1987. Table 12.2.
^ Moore, Patrick (2001). On the Moon. Sterling Publishing Co.. ISBN 0-304-35469-4.
^ Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 0-521-81528-2.

External links

LTO-62A1 Yerkes — L&PI topographic map
Map of the region
Part of Picard crater: photo by Lunar Reconnaissance Orbiter with resolution 1,3 meters/pixel
"Picard Crater Impact Melt". lroc.sese.asu.edu. 2012-12-11. Archived from the original on 2014-12-12. Retrieved 2014-12-12.
"The Crater Picard: Strange Convergences". vgl.org. 1996-04-04. Archived from the original on 2007-10-25. Retrieved 2014-12-12.
Picard in The-Moon Wiki

[1] "Picard (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.

[2] The geologic history of the Moon. USGS Professional Paper 1348. By Don E. Wilhelms, John F. McCauley, and Newell J. Trask. U.S. Government Printing Office, Washington: 1987. Table 12.2.

[3] Moore, Patrick (2001). On the Moon. Sterling Publishing Co.. ISBN 0-304-35469-4.

[4] Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 0-521-81528-2.

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