Major Lunar Standstill - Chimney Rock National Monument

Description

Most people are familiar with the Moon’s cycle and how its shape changes from crescent to full, and its rising position fluctuates along the horizon. However, unknown to many, the Moon has a much longer cycle called the Major Lunar Standstill (MLS). Every 18-19 years, the Moon’s tilted orbit aligns with the Earth’s axis, bringing it to its farthest Northern or Southern rising positions. At Chimney Rock National Monument, throughout this Major Lunar Standstill alignment, the Moon dramatically rises between the impressive rock pinnacles — Companion Rock and Chimney Rock. It is a timely, but very short-lived event. A thousand years ago, when the Ancient Puebloan people built the Great House and other ceremonial spaces at Chimney Rock, they did so with the purpose, as many of today’s scholars believe, to view this rare and spectacular event.

Two consecutive September night events will be held at the Chimney Rock National Monument Amphitheater to explore the current Major Lunar Standstill at this important Native American site and its relationship to Stonehenge and other worldwide locations. These late-night presentations will feature telescopes and stargazing under the Monument’s majestic dark skies, presentations on astronomy, archaeology and culture from leading experts, Native American music; and, most importantly, a live-streamed viewing of the Moon rising between the natural pinnacles. The MLS season is drawing to a close after 2025. This dramatic moonrise won’t be seen again for 18 years.