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Month: September 2025

Moon Crater Fra Mauro and Apollo 14 Astronauts

Fra Mauro on the moon

The week of September 29 – October 5 takes us from Day 8 to Day 14. This week we will highlight the moon crater Fra Mauro, visible on Tuesday night close to the terminator. Fra Mauro region: [SW/K8; L=17°W] Moon

Andrew Planck September 29, 2025September 27, 2025 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in October, Lunar Observers, Moon craters, Rilles on the Moon, Simple Moon Craters No Comments Read more

Moon Crater Humboldt – Best Viewed with Pronounced Libration

Humboldt

The week of September 22-28 takes us from Day 1 to Day 7. This week we will highlight the moon crater Humboldt, visible on Tuesday night close to the eastern edge. Humboldt1: [SE/M18] This moon crater is best viewed when

Andrew Planck September 22, 2025September 17, 2025 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in September No Comments Read more

Moon Crater Kepler and Mons Delisle

Moon Crater Kepler and Mons Delisle

The week of September 15-21 takes us from Day 24 to Day 1. This week we will highlight the moon crater Kepler and Mons Delisle, visible on Tuesday night. Mons Delisle: [NW/G6] The over-imaginative among us say that if you

Andrew Planck September 15, 2025September 9, 2025 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in September, Moon craters, Mountain Ranges on the Moon No Comments Read more

Theophilus – One of a Trio of Imposing Moon Craters

Theophilus – One of a Trio of Imposing Moon Craters

The week of September 8-14 takes us from Day 16 to Day 23. This week we will highlight the moon crater Theophilus, visible on Thursday night. Theophilus, Cyrillus, Catharina: [Repeated from Day 5–SE/L12; L=24°E] This is the most imposing trio

Andrew Planck September 8, 2025September 3, 2025 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in September No Comments Read more

Cleomedes: First Significant Moon Crater North of Mare Crisium

Cleomedes

The week of September 1-7 takes us from Day 10 to Day 16. This week we will highlight the moon crater Cleomedes, visible on Sunday night. Cleomedes: [NE/G15; L=56°E] Cleomedes is the first significant moon crater just north of Mare

Andrew Planck September 1, 2025August 28, 2025 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in September, Moon craters, Rilles 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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