The week of August 24-30 takes us from Lunar Day 6 to Day 12. This week we will highlight the crater Plato, viewable on Wednesday evening.

Moon crater PlatoPlato: [NW/D9] On Wednesday evening, you will witness one of the Moon’s loveliest sights. At this time the Sun will be filtering through the mountain peaks and casting long spire-like shadows on Plato’s floor. Within a short time, it will look like the skyline of an entire city has been outlined on the interior plains of Plato. The process begins quite magically as small areas on Plato’s floor start to glow eerily. If you’re not prepared for it, you’ll be mystified by what is happening, but within a short time the outline of the eastern rim peaks will take shape and become apparent. If you’re lucky enough to catch this process at the beginning, come back every 15 minutes or so to watch the scene unfold.

Plato's original floor is actually 1.5 miles deeper than it appears.There are a few instances where craters are seemingly complex, such as Plato, but they are lacking the requisite central peaks. So what happened? The peaks are still there; they are actually 1.2 miles high, but they’ve been entirely buried by torrential lava flows! Plato’s original floor is actually 1.5 miles deeper than it appears.


It is highly recommended that you get a copy of Sky and Telescope’s Field Map of the Moon, the very finest Moon map available for use at the telescope. It is available for $10.95 at and on Amazon. All features mentioned in this blog will be keyed to the grid on the Field Map and will look like this: Plato: [NW/D9]

Courtesy of Gray Photography of Corpus Christi, Texas
Lunar photos: NASA / USGS / BMDO / LROC / ASU / DLR / LOLA / Moon Globe. Used by permission

Andrew Planck
Moon Crater Plato: One of the Moon’s Loveliest Sights

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