| 词条 | Jeans (Martian crater) |
| 释义 |
Jeans is an impact crater in the Mare Australe quadrangle of Mars, located at 69.8°S latitude and 205.9°W longitude. It is 80.2 km in diameter and was named after James Hopwood Jeans, and the name was approved in 1973 by the International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN).[1] The pictures below show dark areas in which frost is disappearing and the dark ground beneath is being exposed.[2] Layers are also visible—probably from the many cycles of mantle deposition. See also
References1. ^{{cite web|title=Gazetteer of Planetary Nomenclature {{!}} Jeans|url=http://planetarynames.wr.usgs.gov/Feature/2815|website=usgs.gov|publisher=International Astronomical Union|accessdate=4 March 2015}} {{Geography of Mars}}{{crater-stub}}{{Mars-stub}}2. ^http://www.jpl.nasa.gov/news/news.php?release=2013-034 2 : Mare Australe quadrangle|Impact craters on Mars |
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