Andrew Planck

Astronomer, Teacher, Musician

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Apennines

Archimedes: Prominent 50-mile Moon Crater with Terraces

Archimedes: Prominent 50-mile Moon Crater with Terraces

The week of July 3 – July 9 takes us from Day 15 to Day 22. This week we will highlight the moon crater Archimedes, viewable after midnight on Sunday. Archimedes1: [NW/G9; L=4°W] This is a prominent 50-mile moon crater

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

Mare Imbrium: One Time Spectacular Multi-Ring Basin

Mare Imbrium: One Time Spectacular Multi-Ring Basin

The week of March 6-12 takes us from Full Moon to Day 20. This week we will highlight Mare Imbrium, located in the NW quadrant of the Field Map and viewable on Sunday night. Mare Imbrium: The Imbrium basin (all

Andrew Planck March 6, 2023March 2, 2023 Lunar Days in March, Mountain Ranges on the Moon, Multi-ring basin on the moon No Comments Read more

Mare Vaporum on the Moon and September Dates of Note for Space

Mare Vaporum on the Moon and September Dates of Note for Space

The week of August 29 – September 4 takes us from Lunar Day 3 to Day 9. This week we will highlight Mare Vaporum, viewable on Saturday evening. Mare Vaporum: [NE/H10; L=4°E] Notice how there are finger-like projections extending from

Andrew Planck August 29, 2022August 27, 2022 Dates to Observe Objects on the Moon, Lunar Days in August, Mare Patch 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)
  • Clavius – Moon Crater Strewn with Craterlets - June 16, 2025
  • Furnerius – Southernmost Moon Crater That Makes Up the Great Eastern Chain - June 9, 2025
  • Albategnius – 85 mile Complex Moon Crater - June 2, 2025
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