title: Hypatia (crater)
text: # Hypatia (crater)
  
  Hypatia is a lunar impact crater along the northwest edge of Sinus Asperitatis, a bay on the southwest edge of Mare Tranquillitatis. It was named after Egyptian mathematician Hypatia of Alexandria. The nearest crater with an eponym is Alfraganus to the west-southwest. However, farther to the south-southeast, across the lunar mare, is the prominent crater Theophilus.
  
  Hypatia is an asymmetrical formation with a rugged, irregular outer rim cut through in several places by narrow clefts. It is generally longer along an axis running to the north-northwest, with the widest outward bulge occurring on the west side at the northern end. It resembles a merger of several crater formations with a common interior floor. Attached to the exterior rim along the southwest is the satellite crater Hypatia A, a more symmetrical, bowl-shaped crater.
  
  ## Rimae Hypatia
  
  About 70 kilometers to the north of Hypatia is a system of linear rilles designated Rimae Hypatia, running about 180 kilometers across the Mare Tranquillitatis, and generally following a course to the south-southeast. The part of the rilles close to the crater Moltke was informally called U.S. Highway 1 by the Apollo 10 and Apollo 11 crews.
  
  ## Satellite craters
  
  By convention, these features are identified on lunar maps by placing the letter on the side of the crater midpoint closest to Hypatia.
  
  | Hypatia | Latitude | Longitude | Diameter |
  | - | - | - | - |
  | A | 4.9° S | 22.2° E | 16 km |
  | B | 4.6° S | 21.3° E | 5 km |
  | C | 0.9° S | 20.8° E | 15 km |
  | D | 3.1° S | 22.7° E | 6 km |
  | E | 0.3° S | 20.4° E | 6 km |
  | F | 4.1° S | 21.5° E | 8 km |
  | G | 2.7° S | 23.0° E | 5 km |
  | H | 4.5° S | 24.1° E | 5 km |
  | M | 5.3° S | 23.4° E | 28 km |
  | R | 1.9° S | 21.2° E | 4 km |
  