Andrew Planck

Astronomer, Teacher, Musician

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interlocking moon craters

The Longest Distinct Valley on the Moon – Rheita Valley

The Longest Distinct Valley on the Moon – Rheita Valley

The week of July 28 – August 3 takes us from Day 4 to Day 10. This week we will highlight the Rheita Valley on the moon, visible on Tuesday night close to the terminator. Vallis Rheita: [SE/N14; L=52°E] At

Andrew Planck July 28, 2025July 28, 2025 Lunar Days in August, Lunar Days in July, Moon craters, Valleys on the Moon No Comments Read more

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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 www.skyandtelescope.com 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]

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

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Andrew Planck
Andrew Planck
Author and Astronomer Andrew Planck shepherds you to the moon and its mysteries of intrigue and surprise. Learn about the moon’s most fascinating objects, understand how the moon was formed and the names of many of the craters … and why they honor individuals who have changed the course of history.
Andrew Planck
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