Blanchard (crater)

Summary

Blanchard is a lunar impact crater that lies on the far side of the Moon, just behind the southwestern limb. It lies to the south-southwest of the crater Arrhenius, and northwest of Pilâtre. Further to the south is the rugged terrain to the north of the walled plain Hausen.

Blanchard
Coordinates58°15′S 93°30′W / 58.25°S 93.50°W / -58.25; -93.50
Diameter37.46 km
DepthUnknown
Colongitude95° at sunrise
EponymJean P. F. Blanchard

This crater was named after French aeronaut Jean-Pierre Blanchard by the IAU in 1991.[1] It was previously known as Arrhenius P.

The rim of Blanchard is worn and rounded, with a slight elongation along a northeastern direction. There is a break in the northwest rim. The two crater formations have nearly merged, and share the same interior floor. The remainder of the rim has several other breaks caused by impacts, particularly along the southeastern rim. The interior floor, although somewhat rough, does not contain a central peak or notable features.

This crater lies within the Mendel-Rydberg Basin, a 630 km wide impact basin of Nectarian age.

References edit

  1. ^ "Blanchard (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
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  • Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3.
  • Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6.
  • Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.