Llanesco (crater)

MarsGeo-Crater
name=Llanesco


caption=The crater Llanesco and its surroundings, in a screenshot in NASA World Wind.
latitude=28.5
N_or_S=S
longitude=101.2
E_or_W=W
diameter=27 km
eponym=Llanesco, Spain
depth=750 m

Llanesco is a Martian impact crater, 27 kilometers in diameter. It is located at 28.5S, 101.2°W, north of the crater Dinorwic. It is named after a town in Spain, and its name was approved by the International Astronomical Union in 1991. [cite web
title=USGS Astro: Planetary Nomenclature: Feature Data Search Results | work=USGS Gazetteer of Planetary Nomenclature Feature Information
url=http://planetarynames.wr.usgs.gov/jsp/FeatureTypesData2.jsp?systemID=4&bodyID=8&typeID=9&system=Mars&body=Mars&type=Crater,%20craters&sort=AName&show=Fname&show=Lat&show=Long&show=Diam&show=Stat&show=Orig
accessdate=October 23
accessyear=2007] "NASA World Wind" 1.4. NASA Ames Research Center, 2007.] According to a surface age map of Mars based on US Geological Survey data, the area around Llanesco is from the Noachian or Hesperian epoch, which places the area's age at 3.8 to 1.8 billion years. [cite web
title=INTEGRATING GLOBAL-SCALE MISSION DATASETS – UNDERSTANDING THE MARTIAN CRUST. | work=lpi.usra.edu
url=http://www.lpi.usra.edu/meetings/lpsc2005/pdf/1853.pdf
accessdate=October 23
accessyear=2007] The crater's rim averages about 7,750 meters above zero altitude, and its floor averages about 7,000 meters above zero altitude. The crater is therefore approximately only 750 meters deep.

References