Andrew Planck

Astronomer, Teacher, Musician

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ejecta

Atlas and Hercules Craters on the Moon: Blankets of Surrounding Ejecta

Atlas and Hercules Craters on the Moon: Blankets of Surrounding Ejecta

The week of October 30 – November 5 takes us from Day 17 to Day 23. This week we will highlight the moon craters Hercules and Atlas, viewable on Tuesday evening and located in the NE quadrant of the Field

Andrew Planck October 30, 2023November 1, 2023 Craters on the Moon, Dates to Observe Objects on the Moon, Floor Fractured Moon Craters, Lunar Days in November, Lunar Days in October No Comments Read more

Moon Crater Proclus: One of the Brightest Spots on the Moon

Moon Crater Proclus: One of the Brightest Spots on the Moon

The week of January 9 to January 15 takes us from Lunar Day 17 to Day 22. This week we will highlight the moon crater Proclus, near Mare Crisium. Proclus: [NE/H14; L=47°E] Proclus is a small moon crater located just

Andrew Planck January 9, 2023January 4, 2023 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in January 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)
  • Bailly – Largest Crater on Our Side of the Moon - January 12, 2026
  • Longomontanus: Exception to the Rule About Moon Crater Age - January 5, 2026
  • Schickard: Terrain Made Up of Two Different Chemical Compositions - December 29, 2025
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