De Lalande (crater)

Crater characteristics
	Radar image of de Lalande by Magellan probe.
Planet	Venus
Coordinates	20.5°N 355.0°E
Diameter	21 km
Eponym	Marie-Jeanne de Lalande

De Lalande is a multiring impact crater on Venus.[1] It has a diameter of 21.6 km (13.4 mi) and wall width of 5.6 km (3.5 mi).[2] The crater has an outer rim but no peak and is in close proximity to the volcano Gula Mons.[3]

Namesake

French astronomer Jérôme Lalande

The de Lalande crater is named after the French astronomer Marie-Jeanne de Lalande (1768-1832),[4] illegitimate daughter of astronomer Joseph Jerome de Lalande (1732-1807).

References

"de Lalande". U.S. Geological Survey. Retrieved 19 November 2012.
"de Lalande". USRA. Retrieved 19 November 2012.
Weitz, Catherine E. "Chapter 7. Impact Craters". NASA. Retrieved 19 November 2012.
"Lalande". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.

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[usgs-1] "de Lalande". U.S. Geological Survey. Retrieved 19 November 2012.

[usra-2] "de Lalande". USRA. Retrieved 19 November 2012.

[nasa-3] Weitz, Catherine E. "Chapter 7. Impact Craters". NASA. Retrieved 19 November 2012.

[4] "Lalande". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.