Picard (crater) explained

Coordinates:14.57°N 54.72°W
Diameter:23 km
Depth:2.4 km
Colong:306
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. 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.[1] 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.[2]

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.[3]

PicardCoordinatesDiameter, km
K9
L7
M8
N19
P8
Y4

The following craters have been renamed by the IAU.

External links

Notes and References

  1. https://pubs.er.usgs.gov/publication/pp1348 The geologic history of the Moon
  2. Moore, Patrick (2001). On the Moon. Sterling Publishing Co.. .
  3. Book: Bussey, B. . Ben Bussey . Spudis, P. . Paul Spudis . 2004 . The Clementine Atlas of the Moon . . New York . 0-521-81528-2 .