Plato

A distinctive crater with a dark, flat floor on the northern shore of Mare Imbrium.


Object Type: Lunar Impact Crater

Size: 101 km diameter

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

Equipment: Telescope (750/150mm)

Visual Description

Plato appeared as one of the most recognizable features on the Moon - a large crater with a remarkably flat, dark lava-flooded floor contrasting sharply with bright surrounding highlands. The crater’s nearly circular outline and smooth interior made it immediately identifiable. The walls appeared prominent and well-defined.

Notable Features

  • Distinctive dark, flat floor (lava-filled)
  • Nearly perfect circular outline
  • Prominent walls rising sharply from the floor
  • Located on the northern edge of Mare Imbrium
  • One of the most easily recognizable craters

Notes

  • Named after Greek philosopher Plato
  • Best observed 8-10 days after new moon
  • Dark floor contains several tiny craterlets (telescopic challenge)
  • Coordinates: 51.6°N, 9.3°W
  • Classic landmark for lunar observers