Andrew Planck

Astronomer, Teacher, Musician

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Quadrantid Meteor Shower

Catena Davy – Fascinating Moon Crater Chain

Catena Davy – Fascinating Moon Crater Chain

The week of January 1-7 takes us from Day 21 to Day 26. This week we will highlight the Catena Davy viewable on Tuesday night and found in the SW quadrant of the Field Map. Catena Davy: [SW/L9; L=7°W] This

Andrew Planck January 1, 2024December 17, 2023 chain of moon craters, Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in January, Moon craters No Comments Read more

Moon Crater Marius: Largest Dome Field on the Moon

Moon Crater Marius: Largest Dome Field on the Moon

The week of January 2 to January 8 takes us from Lunar Day 11 to Day 17. This week we will highlight the Marius dome field located in the NW quadrant of the Field Map and viewable Tuesday evening. Marius

Andrew Planck January 2, 2023January 3, 2023 Craters on the Moon, Dates to Observe Objects on the Moon, Domes on the Moon, Lunar Days in January, Uncategorized No Comments Read more

Rima Hyginus on the Moon and Is Betelgeuse Going Supernova?

Rima Hyginus on the Moon and Is Betelgeuse Going Supernova?

The week of December 30 – January 5 takes us from Day 4 to Day 10. This week we will highlight Rima Hyginus (the Hyginus Rille), viewable on Thursday evening, and the Quadrantid meteor shower. Rima Hyginus: [NE/J10;] At the

Andrew Planck December 30, 2019December 30, 2019 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in January, Rilles on the Moon, 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)
  • Moon Crater Maurolycus Displays a Rich Diversity of Different Types of Features - December 8, 2025
  • Humboldt: Moon Crater with Cluster of Central Peaks - December 1, 2025
  • 3 Moon Craters West of Mare Nectaris - November 24, 2025
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