Andrew Planck

Astronomer, Teacher, Musician

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“The Engagement Ring”

Moon Crater Gassendi: Three Generations of Crater Age

Moon Crater Gassendi: Three Generations of Crater Age

The week of July 5-11 takes us from Lunar Day 25 to Day 2. This week we will highlight the crater Gassendi, viewable early Monday morning. Gassendi: [SW/L5; L=40°W] Three generations of crater age can be easily observed on Mare

Andrew Planck July 5, 2021July 5, 2021 Craters on the Moon, Lunar Days in July, Unusual Features 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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