Beer is a crater lying situated within the Margaritifer Sinus quadrangle (MC-19) region of the planet Mars, named in honor of the German astronomer, Wilhelm Beer. It is located at 14.4°S 351.8°E.
Kepler is a crater on Mars, located in the Eridania quadrangle at 46.8° S, 140.9° E. It measures approximately 228 kilometres and was named in 1973, by the International Astronomical Union, in honor of the astronomer Johannes Kepler. A section of the floor of Kepler was photographed by the HiRISE camera aboard the Mars Reconnaissance Orbiter on 25 March 2006.
Terby is a crater on the northern edge of Hellas Planitia, Mars. It is in the Iapygia quadrangle. The 174-kilometre-diameter (108 mi) crater is centered at 28°S, 73°E with an elevation of −5 km (−3.1 mi). It is named after François J. Terby. It is the site of an ancient lakebed and has clay deposits. Using data from Mars Global Surveyor, Mars Odyssey, Mars Express, and Mars Reconnaissance Orbiter missions researchers believe Terby's layers were formed from sediments settling under water. Crater counts show this happened during the Noachian period. It used to be thought that Terby Crater contained a large delta. However, newer observations have led researchers to think of the layered sequence as part of a group of layers that may have extended all the across Hellas. There is no valley large enough at the northern rim of Terby to have carried the large amount of sediments necessary to produce the layers. Other details in the layers argue against Terby's containing a delta. Fan deposits are some of the thickest on Mars. Hydrated minerals, including iron/magnesium phyllosilicates, have been detected in several layers.
Boeddicker is a crater in the Aeolis quadrangle of Mars, located at 15° south latitude and 197.7° west longitude. It is 109 km in diameter and was named after Otto Boeddicker, a German astronomer (1853–1937).
Fenagh Crater is an impact crater in the Cebrenia quadrangle of Mars, located at 34.67° N and 215.77° W. It is 6.2 km in diameter and was named after a town in Ireland.
Arkhangelsky is a crater in the Argyre quadrangle of Mars, located at 41.4° S and 24.8° W. It is 117 km (73 mi) across and was named after the Russian geologist Andrey Arkhangelsky.
Timbuktu is an old crater on Mars, located in the Margaritifer Sinus quadrangle (MC-19) region at 5.7° S and 37.6° W. It measures approximately 65.68 kilometres (40.81 mi) in diameter and was named after the ancient city of Timbuktu in Mali, Africa. The crater has numerous cracks that form an irregular figure similar to the streets found in Timbuktu.
Kaiser is a crater in the Noachis quadrangle of Mars, located at 46.6° S and 340.9° W. It is 207 km wide and was named after Frederik Kaiser, a Dutch astronomer (1808–1872). Debris flows have been observed on some of the dunes in this crater. Some researchers believe that they may be caused by liquid water. Liquid water could be stable for short periods of time in the summer in the southern hemisphere of Mars. These gully-like debris flows may be denivation features caused by small amounts of ice melting.
Dromore is a crater on Mars. It measures 14.8 kilometers in diameter and was named after a town in Northern Ireland.
Lod is a crater in the Oxia Palus quadrangle of Mars. It is was named after the city of Lod, Israel in 1976.
Gold is a crater in the Oxia Palus quadrangle of Mars. It was named after a town in Potter County, Pennsylvania in 1976.
Suzhi is an impact crater on Mars, located in the Iapygia quadrangle at 27.7°S and 274.0°W. It measures 24.63 kilometres (15.30 mi) in diameter and was named by the International Astronomical Union (IAU) Working Group for Planetary System Nomenclature in 1991 after a place in China. There may have been a lake in the crater in the past because layers are visible in a depression on the floor.
Teisserenc de Bort is an impact crater on Mars, at 0.4° N and 45.1° E. Most of it is in the Syrtis Major quadrangle. It measures 115 kilometres (71 mi) in diameter and was named after French meteorologist Léon Teisserenc de Bort (1855–1913). The name was adopted by IAU's Working Group for Planetary System Nomenclature in 1973. A picture below shows dark slope streaks. The darker the streak, the newer it is.
Wright is an impact crater in the Phaethontis quadrangle of Mars, located at 58.9°S latitude and 151.0°W longitude. It measures 113.78 km (70.70 mi) in diameter and was named after American astronomer William Hammond Wright (1871–1959). The naming was approved by the IAU in 1973. The Keeler–Trumpler crater pair lies to the south.
Jones is an impact crater on Mars, located at 19.1°S 19.9°W in the Margaritifer Sinus quadrangle. It measures 94.0 kilometer in diameter and was named after English astronomer Harold Spencer Jones (1890–1960). The name was approved in 1973, by the International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN).
Vinogradov is an impact crater in the Margaritifer Sinus quadrangle of Mars, located at 20.2°S latitude and 37.7°W longitude. It measures 223.5 kilometres (138.9 mi) in diameter and was named after Alexander Pavlovich Vinogradov, and the name was approved in 1979 by the International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN).
Baldet Crater is an impact crater in the Syrtis Major quadrangle of Mars, located at 23.0°N latitude and 294.6°W longitude. It is 180.0 km in diameter and was named after Fernand Baldet, and the name was approved in 1973 by the International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN).
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). The pictures below show dark areas in which frost is disappearing and the dark ground beneath is being exposed. Layers are also visible—probably from the many cycles of mantle deposition.
Bled is a small crater on Mars. It was named after the town of Bled in Slovenia; the name was approved in 1976 by the IAU.
Shawnee is a crater in the Oxia Palus quadrangle of Mars. It was named after the town of Shawnee, Ohio in 1976.
Viking Orbiter 1 mosaic showing Lod (top) and Bok (bottom)
Topographic map of the area around Bok
CTX camera image
Enlargement showing Bok
