Ogygis Undae is the only named southern hemisphere dune field on Mars.[1] It is named after one of the classical albedo features on Mars, Ogygis Regio.[2] Its name, which refers to Ogyges, a primeval mythological ruler in ancient Greece,[2] was officially approved by the International Astronomical Union (IAU) on September 17, 2015. It is situated just outside Argyre Planitia, a plain located in the southern highlands of Mars.[3] The dunes of Ogygis Undae extend from latitude −49.94°N to −49.37°N and from longitude 292.64°E to 294.93°E (65.07°W – 67.36°W).[2] They are centered at latitude −49.66°N, longitude 293.79°E (66.21°W), and extend approximately 87 km to the east and west from there.[4][2] Ogygis Undae has an area of 1904 km2, and due to its large size is a primary subject for research on Martian dune morphology and sand composition.[4][3]
- ^ "Nomenclature Search Results Target: MARS Feature Type: Unda, undae". Gazetteer of Planetary Nomenclature. USGS.
- ^ a b c d "Ogygis Undae". Gazetteer of Planetary Nomenclature. USGS.
- ^ a b H. R. Charles, T. N. Titus, R. K. Hayward, and C. S. Edwards. "Comparison of the Mineral Composition of the Sediment Found in Two Mars Dunefields: Ogygis Undae and Gale Crater" (PDF). 47th Lunar and Planetary Science Conference (2016). USGS.
{{cite web}}: CS1 maint: multiple names: authors list (link) - ^ a b Silvestro, S.; Di Achille, G.; Ori, G.G. (September 2010). "Dune morphology, sand transport pathways and possible source areas in east Thaumasia Region (Mars)". Geomorphology. 121 (1–2): 84–97. Bibcode:2010Geomo.121...84S. doi:10.1016/j.geomorph.2009.07.019. ISSN 0169-555X.