Andrew Planck

Astronomer, Teacher, Musician

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Rupes Cauchy

Cauchy Domes on the Moon

Cauchy Domes on the Moon

The week of February 10-16 takes us from Lunar Day 13 to Day 18. This week we will highlight the Cauchy Domes on the moon, visible on Sunday night near the terminator. Cauchy domes: [NE/J13; L=36°E] During sunrise over this

Andrew Planck February 10, 2025February 7, 2025 Dates to Observe Objects on the Moon, Domes on the Moon, Lunar Days in February No Comments Read more

Rupes Cauchy and Rupes Recta – Best Known Faults on the Moon

Rupes Cauchy and Rupes Recta – Best Known Faults on the Moon

The week of January 27 – February 2 takes us from Lunar Day 28 to Day 5. This week we will highlight Rupes Cauchy, visible on Sunday night close to the terminator. Rupes Cauchy: [NE/J13; L=37°E] Two of the best-known

Andrew Planck January 27, 2025January 27, 2025 Dates to Observe Objects on the Moon, Faults on the Moon, Lunar Days in February, Lunar Days in January, Rilles on the Moon No Comments Read more

Cauchy Domes on the Moon

Cauchy Domes on the Moon

The week of November 18-24 takes us from Lunar Day 18 to 24. This week we will highlight on the moon the Cauchy Domes, visible on Tuesday night. Cauchy Domes: [NE/J13; L=36°E] During sunrise over this area on the moon,

Andrew Planck November 18, 2024November 15, 2024 Cauchy Domes on the Moon, Dates to Observe Objects on the Moon, Domes on the Moon, Lunar Days in November No Comments Read more

Rupes Cauchy and Rupes Recta: Both are Paralleled by a Nearby Rille

Rupes Cauchy and Rupes Recta: Both are Paralleled by a Nearby Rille

The week of September 16-22 takes us from Day 13 to Day 21. This week we will highlight Rupes Cauchy, viewable on Friday and Saturday nights, located in the NE quadrant of the Field Map at J13. Rupes Cauchy: [NE/J13;

Andrew Planck September 16, 2024August 31, 2024 Dates to Observe Objects on the Moon, Faults on the Moon, Lunar Days in September No Comments Read more

Rupes Cauchy: A Best Known Fault on the Moon

Rupes Cauchy: A Best Known Fault on the Moon

The week of July 22-28 takes us from Day 17 to Day 23. This week we will highlight Rupes Cauchy, viewable on Wednesday night and located in the NE quadrant of the Field Map at J13. Rupes Cauchy: [NE/J13; L=37°

Andrew Planck July 22, 2024July 19, 2024 Dates to Observe Objects on the Moon, Faults on the Moon, Lunar Days in July, Rilles on the Moon No Comments Read more

Two Faults on the Moon Paralleled by a Nearby Rille

Two Faults on the Moon Paralleled by a Nearby Rille

The week of May 6-12 takes us from Day 28 to Day 5. This week we will highlight Rupes Cauchy, viewable on Sunday evening, May12, Day 5, and located in the NE quadrant of the Field Map at J13. Rupes

Andrew Planck May 6, 2024May 3, 2024 Dates to Observe Objects on the Moon, Faults on the Moon, Lunar Days in May No Comments Read more

Two of the Best-Known Faults on the Moon

Two of the Best-Known Faults on the Moon

The week of May 8-14 takes us from Day 18 to Day 24. This week we will highlight Rupes Cauchy, a fault on the moon, viewable on Tuesday before sunrise. Rupes Cauchy: [NE/J13; L=37°E] Two of the best-known faults on

Andrew Planck May 8, 2023April 22, 2023 Dates to Observe Objects on the Moon, Faults on the Moon, Lunar Days in May, Rilles on the Moon, Saturn No Comments Read more

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

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

Apennine Mountain Range and Rupes Recta, the Straight Wall, on the Moon

Apennine Mountain Range and Rupes Recta, the Straight Wall, on the Moon

The week of October 31 – November 6 takes us from Lunar Day 7 to Day 13. This week we will highlight the Apennine Mountain range, located on the Field Map at [NW/G9] and viewable Tuesday evening, and Rupes Recta,

Andrew Planck October 31, 2022October 28, 2022 Dates to Observe Objects on the Moon, Faults on the Moon, Lunar Days in November, Lunar Days in October No Comments Read more

Cauchy Lunar Domes – Result from Magma

Cauchy Lunar Domes – Result from Magma

The week of August 1-7 takes us from Lunar Day 4 to Day 10. This week we will highlight the Cauchy lunar domes. Cauchy Domes: [NE/J13] During sunrise over this area you will have an opportunity to view lunar domes,

Andrew Planck August 1, 2022July 31, 2022 Cauchy Domes on the Moon, Lunar Days in August 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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