Endymion

A large crater with a distinctively dark, flat floor near the Moon’s northeastern limb.

Visual Description

Endymion appeared as a large crater with a notably dark, smooth floor - one of the darkest crater floors on the Moon. The contrast between the dark lava-filled floor and the bright surrounding highlands was striking. The crater walls were well-defined and appeared to rise significantly above the floor.

Notable Features

• Exceptionally dark, flat floor (lava-filled)
• Large diameter with prominent walls
• Located near the northeastern limb
• Smooth floor contrasting with bright highlands
• One of the darkest crater floors visible

Notes

• Named after Endymion from Greek mythology
• Best observed 3-5 days after new moon
• The dark floor makes it easily identifiable
• Coordinates: 53.6°N, 57.0°E
• Subject to libration effects due to position near limb