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Astronomer, Teacher, Musician

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Month: October 2024

First Two Segments of Chain of Large Moon Craters: Langrenus and Vandelinus

moon crater Langrenus

The week of October 28 – November 3 takes us from Lunar Day 26 to Day 3. This week we will highlight the moon craters Langrenus and Vandelinus, visible on Sunday night. The Great Eastern Chain: [SE/K-N16; L=61°E] There is

Andrew Planck October 28, 2024October 25, 2024 chain of moon craters, Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in October, Moon craters No Comments Read more

Largest and Most Conspicuous Moon Crater – Maurolycus

Maurolycus moon crater

The week of October 21-27 takes us from Lunar Day 19 to Day 25. This week we will highlight the moon crater Maurolycus, visible on Tuesday night. Maurolycus: [SE/P11; L=14°E] Let us venture briefly into a region where angels fear

Andrew Planck October 21, 2024October 17, 2024 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in October, Moon craters No Comments Read more

Moon Basin Grimaldi – Darkest Spot on the Moon

Grimaldi on the moon

The week of October 14-20 takes us from Lunar Day 12 to Day 18. This week we will highlight the basin Grimaldi, visible on Tuesday night. Grimaldi: [SW/K3; L=68°W] In comparison to Aristarchus (Day 11), which is the brightest spot

Andrew Planck October 14, 2024October 11, 2024 Dates to Observe Objects on the Moon, Lunar Days in October, Moon Basin No Comments Read more

Two Complex Moon Craters with Terraced Walls: Aristoteles and Eudoxus

Aristoteles and Eudoxus on the moon

The week of October 7-13 takes us from Day 5 to Day 11. This week we will highlight the moon craters Aristoteles and Eudoxus, viewable on Tuesday and Wednesday nights, located in the NE quadrant of the Field Map at

Andrew Planck October 7, 2024October 4, 2024 complex moon craters, Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in October 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
Latest posts by Andrew Planck (see all)
  • One of the Moon’s Loveliest Sights – Moon Crater Plato - March 9, 2026
  • Moon Crater Endymion Resembles Plato - March 2, 2026
  • Maurolycus – Moon Crater in the Lunar Highlands - February 23, 2026
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