Craters Craters Ahmad is a crater in the northern hemisphere of Saturn's moon Enceladus. Ahmad was first discovered in Voyager 2 images but was seen at much higher resolution, though near the terminator, by Cassini. It is located at 57.4° North Latitude, 305.4° West Longitude and is 16 kilometers across. The western portion of the crater is largely absent, either buried or disrupted by the eastern margin of Samarkand Sulci. A large, dome-like structure occupies the interior of the crater, caused by infill of material from Samarkand Sulci or from viscous relaxation. ...more on Wikipedia about "Ahmad (crater)"
Aladdin is a crater in the northern hemisphere of Saturn's moon Enceladus. Aladdin was first discovered in Voyager 2 images. It is located at 63.1° North Latitude, 16.9° West Longitude and is 34 kilometers across. Aladdin has a large dome in its interior, suggesting the crater has undergone some viscous relaxation. ...more on Wikipedia about "Aladdin (crater)"
Ali Baba is a large crater in the northern hemisphere of Saturn's moon Enceladus. Ali Baba was first discovered in Voyager 2 images. It is located at 57.2° North Latitude, 12.0° West Longitude and is 35 kilometers across. Ali Baba has a large dome in its interior, suggesting the crater has undergone viscous relaxation. The top of the dome even reaches higher than the crater rim. ...more on Wikipedia about "Ali Baba (crater)"
A caldera is a volcanic feature formed by the collapse of a volcano into itself. Calderas may be filled with water, creating crater lakes. The word 'caldera' comes from a Spanish word meaning "cauldron". ...more on Wikipedia about "Caldera"
A crater chain is a line of craters along the surface of an astronomical body. Some of these chains are thought to be made by the impact of a body that was broken up by tidal forces into a string of smaller objects following roughly the same orbit. An example of this was seen actually happening with the impact of Comet Shoemaker-Levy 9 on Jupiter. During the Voyager missions to the planet, planetary scientists identified 13 crater chains on Callisto and three on Ganymede. ...more on Wikipedia about "Crater chain"
Dalilah is a crater in the northern hemisphere of Saturn's moon Enceladus. Dalilah was first discovered in Voyager 2 images but was seen at much higher resolution by Cassini. It is located at 52.9° North Latitude, 246.4° West Longitude and is 14 kilometers across. Fractures have deformed the south-eastern side of Dalilah as well as the dome at the center of the crater. This effect of tectonic deformation of dome formed through viscous relaxation is also seen on a slightly larger scale at Dunyazad crater. ...more on Wikipedia about "Dalilah (crater)"
Daryabar Fossa is an east-west trending trough on Saturn's moon Enceladus. Daryabar Fossa was first seen in Voyager 2 images, though a small section was see at much higher resolution by Cassini. It is centered at 9.7° North Latitude, 359.1° West Longitude and is approximately 201 kilometers long. Based on limb profiles of Voyager 2 images, Daryabar Fossa was determined to be a 400- meter deep and 4 kilometers wide (Kargel and Pozio 1996). Daryabar Fossa runs perpendicular to the scarp Isbanir Fossa and is right-laterally offset 15-20 km by the scarp, suggesting Isbanir is a strike-slip or transform fault (Rothery 1999). ...more on Wikipedia about "Daryabar Fossa"
Duban is a crater in the northern hemisphere of Saturn's moon Enceladus. Duban was first seen in Voyager 2 images, though the crater has also been seen in much higher resolution Cassini images. It is located at 58.3° North Latitude, 277.5° West Longitude and is 20 kilometers across. In the Cassini image, evidence for significant tectonic deformation can be seen along the northwest rim of the crater. ...more on Wikipedia about "Duban (crater)"
Dunyazad is a large crater on Saturn's moon Enceladus first discovered by the Voyager spacecraft. It is located at 42.6 North Latitude, 196.5 West Longitude and is approximately 27 kilometers across, making it one of the largest craters on Enceladus. Dunyazad is the southernmost crater of a prominent crater triplet on Enceladus' anti-Saturnian hemisphere (there is no evidence that the impacts are related or were formed from break-up of a single body, like Shoemaker-Levy 9). Voyager discovery images of this crater revealed an up-domed floor at Dunyazad, suggesting that the crater had been modified by viscous relaxation. Higher resolution views of Dunyazad taken by the Cassini Spacecraft during a close flyby on March 9, 2005 reveal not only an up-domed floor, but numerous tectonic fractures as well, particularly within the dome and northeastern crater rim. ...more on Wikipedia about "Dunyazad (crater)"
Gharib is a crater near the north pole of Saturn's moon Enceladus. Gharib was first seen in Voyager 2 images. It is located at 81.3° North Latitude, 251.7° West Longitude and is 20 kilometers across. A large, dome-like structure occupies the interior of the crater, suggesting the crater has undergone significant viscous relaxation. ...more on Wikipedia about "Gharib (crater)"
Herschel is a huge crater on the Saturnian moon Mimas. It is named after the eighteenth century astronomer William Herschel, who discovered Mimas in 1789. ...more on Wikipedia about "Herschel (crater on Mimas)"
An impact crater (impact basin or sometimes crater) is a circular depression on a surface, usually referring to a planet, moon, asteroid, or other celestial body, caused by a collision of a smaller body ( meteorite) with the surface. ...more on Wikipedia about "Impact crater"
Isbanir Fossa is a north-south trending scarp on Saturn's moon Enceladus. Isbanir Fossa was first seen in Voyager 2 images, though a small section was see at much higher resolution by Cassini. It is centered at 12.6° North Latitude, 354.0° West Longitude and is approximately 132 kilometers long. Based on photoclinometric analysis of Voyager 2 images (using topographic shading in an image to determine slope), like the one at right, Isbanir Fossa was determined to be a 300- meter tall, west-dipping scarp (Kargel and Pozio 1996). Two sets of troughs can be seen running perpendicular to Isbanir Fossa, like Daryabar Fossa. These troughts appear to be right-laterally offset 15-20 km east and west of Isbanir Fossa, suggesting that the scarp maybe a strike-slip fault or even a transform fault with troughs like Daryabar Fossa respresenting spreading centers (Rothery 1999). ...more on Wikipedia about "Isbanir Fossa"
Julnar is a crater in the northern hemisphere of Saturn's moon Enceladus. Julnar was first discovered in Voyager 2 and has only been seen at comparable resolution by Cassini. It is located at 54.2° North Latitude, 342.0° West Longitude and is approximately 20 kilometers across. ...more on Wikipedia about "Julnar (crater)"
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This is a list of craters on asteroid 253 Mathilde. Because Mathilde is a dark, carbonaceous body, its craters have been named after famous coalfields from across the world. ...more on Wikipedia about "List of craters on 253 Mathilde"
This is a list of named craters on Proteus. Protean craters are named after water-related spirits, gods, goddesses (excluding Greek and Roman names). ...more on Wikipedia about "List of craters on Proteus"
This is a list of named craters on Puck. Puckian craters are named after mischievous spirits in European mythology. ...more on Wikipedia about "List of craters on Puck"
This is a list of named craters on Umbriel. Umbrielian craters are named after evil spirits in various mythologies. ...more on Wikipedia about "List of craters on Umbriel"
This is a list of craters with ray systems. In the following tables, the listed coordinates and the diameter are for the crater. ...more on Wikipedia about "List of craters with ray systems"
Musa is a crater in the northern hemisphere of Saturn's moon Enceladus. Musa was first seen in Voyager 2 images. It is located at 73.8° North Latitude, 6.5° West Longitude and is 22 kilometers across. A large, dome-like structure occupies the interior of the crater, suggesting the crater has undergone significant viscous relaxation. From Voyager 2 images, it also appears that Musa is superimposed on an older crater that formed just to the south. ...more on Wikipedia about "Musa (crater)"
Odysseus is the largest crater on Saturn's moon Tethys. It is 400 km in diameter, 2/5 of the moon's total size. It is named after the Greek hero Odysseus. ...more on Wikipedia about "Odysseus (crater)"
Peri-Banu is a crater in the northern hemisphere of Saturn's moon Enceladus. Peri-Banu was first discovered in Voyager 2 images but was seen at much higher resolution, though near the terminator, by Cassini. It is located at 63.1° North Latitude, 317.9° West Longitude and is 16 kilometers across. The western portion of the crater is largely absent, either buried or disrupted by the eastern margin of Samarkand Sulci. A large, dome-like structure occupies the interior of the crater, caused by infill of material from Samarkand Sulci or from viscous relaxation. ...more on Wikipedia about "Peri-Banu (crater)"
A pseudocrater is a volcanic formation created by a phreatic eruption, when lava flows over wet ground. ...more on Wikipedia about "Pseudocrater"
Rano Raraku is a volcanic crater formed of consolidated ash, or tuff, and located on Easter Island, Chile. It is the quarry in which about 95% of the island's known monolithic sculpture ( Moai) were carved. The sides of the crater are high and steep except on the north and northwest, where they are much lower and gently sloping. The interior contains a freshwater lake bordered by reeds called tortora (Scripus sp.). The reeds, once believed to have been carried to the island by explorers from the South American mainland, are now known to have been naturally introduced some 30,000 years ago. Rano Raraku is divided into 5 archaeological zones, and as of 1981 a total of 397 statues were inventoried on the interior and exterior slopes and in the exterior quarries. The interior quarries, which have been more recently mapped, will increase this statue count substantially when work is completed. Use of Rano Raraku spanned 500-1000 years, and probably extended into the post-contact time period after European discovery of the island in 1722. Rano Raraku is a visual record of statue design vocabulary and technological innovation, and is a precious and important part of the Rapanui patrimony. ...more on Wikipedia about "Rano Raraku"
A ray system comprises the radial streaks of fine ejecta thrown out during the formation of an impact crater. Ray systems are only found on planetary bodies that lack an atmosphere. If the material has a different reflectivity, or albedo, than the surface on which it is deposited, the rays form visible patterns. The resulting rays can extend for several multiples of the impact crater's diameter. Rays are often accompanied by small secondary craters formed by larger chunks of ejecta. ...more on Wikipedia about "Ray system"
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