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 was officially approved by the International Astronomical Union (IAU) on 17 September 2015. Its name is Greek , [2] and derives from the name of Ogyges , a primeval mythological ruler in ancient Greece . 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] Its centre is located at latitude −49.66°N, longitude 293.79°E (66.21°W), and has a diameter of 87.7 km. [3] [2] It is situated just outside Argyre Planitia , a plain located in the southern highlands of Mars. [4] Ogygis Undae has an area of 1904 km 2 , and, because to its large size, it is considered to be an excellent field on which research on dune morphology and sand composition, using data which has been gathered by the various instruments onboard robotic spacecraft sent by NASA and ESA to Mars. [3] [4]
Year | Metadata | Sections | Top Words | First Paragraph |
2018 |
85514 characters 4 sections 4 paragraphs 2 images 669 internal links 9 external links |
1. Morphological investigation |
ogygis 0.687 undae 0.384 dune 0.235 bimodal 0.211 sand 0.163 dunes 0.158 gale 0.114 field 0.098 onboard 0.087 composition 0.086 49 0.076 emission 0.076 thermal 0.076 transport 0.073 mineral 0.072 |
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 was officially approved by the International Astronomical Union (IAU) on 17 September 2015. Its name is Greek , [2] and derives from the name of Ogyges , a primeval mythological ruler in ancient Greece . 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] Its centre is located at latitude −49.66°N, longitude 293.79°E (66.21°W), and has a diameter of 87.7 km. [3] [2] It is situated just outside Argyre Planitia , a plain located in the southern highlands of Mars. [4] Ogygis Undae has an area of 1904 km 2 , and, because to its large size, it is considered to be an excellent field on which research on dune morphology and sand composition, using data which has been gathered by the various instruments onboard robotic spacecraft sent by NASA and ESA to Mars. [3] [4] |
2017 |
38946 characters 3 sections 3 paragraphs 5 images 172 internal links 5 external links |
ogygis 0.702 undae 0.361 bimodal 0.255 dune 0.189 gale 0.137 sand 0.131 dunes 0.119 field 0.118 49 0.092 emission 0.092 thermal 0.091 composition 0.083 ogyges 0.079 unday 0.079 usgs 0.075 |
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 was officially approved by the International Astronomical Union (IAU) on 17 September 2015. Its name is Greek , [2] and derives from the name of Ogyges , a primeval mythological ruler in ancient Greece . 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] Its centre is located at latitude −49.66°N, longitude 293.79°E (66.21°W), and has a diameter of 87.7 km. [2] It is situated just outside Argyre Planitia , a plain located in the southern highlands of Mars. [3] Ogygis Undae has an area of 1904 km 2 , and, because to its large size, it is considered to be an excellent field on which research on its composition can be performed, using data which has been gathered by the various instruments onboard robotic spacecraft sent by NASA to Mars. [3] |