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Astronomer, Teacher, Musician

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Most Spectacular Feature on the Moon – Apennine Mountain Range

Apennine Mountain Range

The week of January 6-12 takes us from Lunar Day 7 to Day 13. This week we will highlight the Apennine mountains, visible on Tuesday night. Montes Apenninus: The Apennine Mountain Range is the most spectacular feature on the Moon

Andrew Planck January 6, 2025December 6, 2024 Dates to Observe Objects on the Moon, Lunar Days in January, Mountain Ranges 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

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

Series of Rilles on the Moon: Rimae Sirsalis

Rimae Sirsalis on the moon

The week of July 29 – August 4 takes us from Day 24 to New Moon. This week we will highlight a series of rilles called Rimae Sirsalis, located in the SW quadrant of the Field Map and viewable on

Andrew Planck July 29, 2024July 30, 2024 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in August, Lunar Days in July, Rilles on the Moon, Uncategorized No Comments Read more

Moon Crater Janssen: How New Moon Craters are Superimposed on Top of Older Craters

moon crater Janssen

The week of April 8-14 takes us from Day 29 to Day 6. This week we will highlight the moon crater Janssen, located in the SE quadrant of the Field Map at P13. Janssen: [SE/P13; L=40°E] Janssen is located 85

Andrew Planck April 8, 2024March 22, 2024 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in April, Rilles on the Moon No Comments Read more

Taruntius: Floor-Fractured Moon Crater

Taruntius is a floor-fractured moon crater

The week of January 8-14 takes us from Day 27 to Day 4. This week we will highlight the moon crater Taruntius viewable on Sunday night and found in the NE quadrant of the Field Map at J4. Taruntius: [NE/J14;

Andrew Planck January 8, 2024January 5, 2024 Craters on the Moon, Dates to Observe Objects on the Moon, Floor Fractured Moon Craters, Lunar Days in January No Comments Read more

Montes Apenninus on the Moon

Apennine Mountain Range on the moon

The week of December 18-24 takes us from Day 7 to Day 13. This week we will highlight Montes Apenninus, viewable on Tuesday and Wednesday nights. Montes Apenninus: The Apennine Mountain Range [NW/G9] is the most spectacular feature on the

Andrew Planck December 18, 2023December 17, 2023 Dates to Observe Objects on the Moon, Lunar Days in December, Mountain Ranges on the Moon No Comments Read more

Rima Hyginus: A Line of Linked Moon Craters

Rima Hyginus on the moon

The week of September 4 – September 10 takes us from Day 20 to Day 26. This week we will highlight Rima Hyginus, viewable on Tuesday before midnight. Rima Hyginus: [NE/J10; L=8°E] At the west end of the Ariadaeus rille,

Andrew Planck September 4, 2023August 31, 2023 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in September, Rilles on the Moon No Comments Read more

Moon Craters in Fra Mauro Region Critical to Understanding Important Process That Shaped the Moon

Fra Mauro region on the moon

The week of July 10 – July 16 takes us from Day 22 to Day 29. This week we will highlight moon craters in the Fra Mauro region, viewable before sunrise on Tuesday. Fra Mauro region: [SW/K8; L=17°W] Moon craters

Andrew Planck July 10, 2023July 6, 2023 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in July, Moon craters No Comments Read more

Rille Rima Marius on the Moon

Rille Rima Marius on the Moon

The week of June 12-18 takes us from Day 25 to Day 1. This week we will highlight the rille Rima Marius on the moon (in the NW quadrant of the Moon Map at H5) and viewable early Tuesday morning.

Andrew Planck June 12, 2023June 8, 2023 Dates to Observe Objects on the Moon, Lunar Days in June, 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
Latest posts by Andrew Planck (see all)
  • Moon Crater Schickard has Stripes - May 11, 2026
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  • Endymion – Moon Crater - April 27, 2026
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