Andrew Planck

Astronomer, Teacher, Musician

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Mercury

Arago Domes

Arago Domes

The week of August 5-11  takes us from Day 5 to Day 11. This week we will highlight the Arago domes viewable on Tuesday night. Arago domes: [NE/J12] Near the crater Arago there is a pair of very large domes,

Andrew Planck August 5, 2019August 5, 2019 Dates to Observe Objects on the Moon, Domes on the Moon, Jupiter, Lunar Days in August, Mercury, Saturn No Comments Read more

Intact #Craters and Multi-Ring Basin on the #Moon

Intact #Craters and Multi-Ring Basin on the #Moon

The week of November 28 – December 4 takes us from Lunar Day 26 (essentially New Moon) to the beginning of Day 5. This week we will highlight the craters Peirce and Picard visible on Friday and Mare Nectaris visible

Andrew Planck November 28, 2016November 27, 2016 Craters on the Moon, Lunar Days in November, Mercury No Comments Read more

Mare Frigoris: Northern Boundary Supports “Gargantuan Hypothesis”

Mare Frigoris: Northern Boundary Supports “Gargantuan Hypothesis”

The week of October 10th-16th takes us from Lunar Day 9 to the end of Day 15 (essentially still Full Moon). This week we will highlight Mare Frigoris, which is visible throughout the entire week, but starting on Saturday, you’ll

Andrew Planck October 10, 2016February 27, 2017 Dates to Observe Objects on the Moon, Jupiter, Lunar Days in October, Mare Patch on the Moon, Mercury 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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