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Andrew Planck

Astronomer, Teacher, Musician

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Month: August 2025

Apennine Mountain Range on the Moon – Most Spectacular Feature

Apennine Mountain Range

The week of August 25-31 takes us from Day 25 to Day 9. This week we will highlight Montes Apenninus, visible on Sunday night close to the terminator. Montes Apenninus: [NW/H9-G10; L=4°W] The Apennine Mountain Range is the most spectacular

Andrew Planck August 25, 2025August 22, 2025 Lunar Days in August, Mountain Ranges on the Moon No Comments Read more

Reiner Gamma and Lunar Swirls on the Moon

Reiner Gamma and Reiner on the moon

The week of August 18-24 takes us from Day 25 to Day 2. This week we will highlight the Reiner Gamma, visible on Tuesday & Wednesday nights close to the terminator. Reiner Gamma: [NW/J4; L=59°W] Lunar swirls are absolutely flat

Andrew Planck August 18, 2025August 14, 2025 Lunar Days in August, Lunar Swirls, Unusual Features on the Moon No Comments Read more

Moon Crater Janssen – 85 miles Southwest of the Rheita Valley

Moon Crater Janssen view of surface of moon

The week of August 11-17 takes us from Day 18 to Day 24. This week we will highlight the moon crater Janssen visible on Tuesday night close to the terminator. Janssen: [SE/P13; L=40°E] Janssen is located 85 miles southwest of

Andrew Planck August 11, 2025August 7, 2025 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in August, Moon craters, Rilles on the Moon No Comments Read more

Schickard: Moon Crater Floor with Stripes

Schickard: Moon Crater Floor with Stripes

The week of August 4-10 takes us from Day 11 to Day 17. This week we will highlight the moon crater Schickard, visible on Wednesday night close to the terminator. Schickard: [SW/P4; L=55°W] When you look at moon crater Schickard,

Andrew Planck August 4, 2025July 30, 2025 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in August, Moon craters 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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