Atlas

A prominent crater with a complex, dark floor featuring numerous small craters and rilles.


Object Type: Lunar Impact Crater

Size: 87 km diameter

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

Equipment: Telescope (750/150mm)

Visual Description

Atlas appeared as a distinct crater with high walls and a notably dark, irregular floor. The crater sits immediately north of the slightly smaller crater Hercules, forming a striking pair. The floor showed hints of complexity even at low magnification, with darker patches indicating volcanic material.

Notable Features

  • Dark, complex floor with multiple small craters
  • High, prominent walls
  • Forms a pair with adjacent crater Hercules
  • Floor contains numerous tiny craterlets and dark halo craters
  • Located at the edge of Mare Frigoris

Notes

  • Named after the Titan Atlas from Greek mythology
  • Best observed 4-6 days after new moon
  • The Atlas-Hercules pair is a famous telescopic sight
  • Coordinates: 46.7°N, 44.4°E
  • Floor features require good seeing to observe