Lacus Mortis

The Lake of Death, a small mare region in the northeastern quadrant, notable for containing the crater Bürg with its prominent central peak.

Visual Description

Lacus Mortis appeared as a roughly hexagonal dark patch in the northeastern highlands, located south of Mare Frigoris. The feature’s most distinctive characteristic was the crater Bürg near its center, displaying a prominent central peak. The lake’s basaltic floor showed typical smooth mare characteristics, though it was notably smaller than the major maria and surrounded by bright highland terrain.

Notable Features

• Hexagonal-shaped mare region
• Crater Bürg with central peak at center
• Smooth dark mare floor
• Surrounded by highland terrain
• South of Mare Frigoris

Notes

• Name means “Lake of Death”
• Contains one of the Moon’s better central peaks
• Best observed 7-9 days after new moon
• Coordinates: 45.0°N, 27.2°E
• Excellent telescopic target