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Astronomer, Teacher, Musician

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Month: December 2022

Rupes Recta and Rupes Cauchy: Two of the Best-Known Faults on the Moon

Rupes Cauchy and Rima Cauchy on the moon

The week of December 26 – January 1 takes us from Lunar Day 4 to Day 10. This week we will highlight the fault Rupes Cauchy located on the moon in the NE quadrant of the Field Map and viewable

Andrew Planck December 26, 2022December 20, 2022 Craters on the Moon, Dates to Observe Objects on the Moon, Faults on the Moon, Lunar Days in December, Rilles on the Moon No Comments Read more

Maurolycus – Largest and Most Conspicuous Moon Crater in Lunar Highlands

Maurolycus moon crater

The week of December 12 – 18 takes us from Lunar Day 19 to Day 25. This week we will highlight the moon crater Maurolycus, located in the SE quadrant of the Field Map and viewable Tuesday evening around 11:00pm.

Andrew Planck December 12, 2022December 7, 2022 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in December, Unusual Features on the Moon No Comments Read more

Moon Crater Gutenberg – Unusual Sequence of Moon Crater Development

Moon Crater Gutenberg

The week of December 5 – 11 takes us from Lunar Day 13 to Day 19. This week we will highlight the moon crater Gutenberg, located in the SE quadrant of the Field Map. Gutenberg: [SE/K14; L=41°E] Gutenberg crater is

Andrew Planck December 5, 2022December 6, 2022 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in December, Uncategorized, 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
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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