Clavius

One of the largest craters on the Moon’s near side, featuring a distinctive arc of craters on its floor.


Object Type: Lunar Impact Crater

Size: 231 km diameter

Location: Chattanooga, TN (35.15°N, 85.32°W)

Equipment: Telescope (750/150mm)

Visual Description

Clavius appeared as one of the largest and most impressive craters in the southern highlands. The crater’s immense size was immediately apparent, with massive walls enclosing a complex floor. Even with binoculars, a curved chain of progressively smaller craters was visible crossing the floor, creating one of the Moon’s most distinctive crater patterns.

Notable Features

  • One of the largest craters visible (231 km diameter)
  • Famous arc of craters across the floor (Porter, Rutherfurd, Clavius D)
  • Massive terraced walls
  • Complex floor topography
  • Featured in the film “2001: A Space Odyssey”

Notes

  • Named after German mathematician Christopher Clavius
  • Best observed 9-11 days after new moon
  • The crater arc is a classic telescopic sight
  • Coordinates: 58.4°S, 14.4°W
  • Crater depth approximately 3.5 km