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Andrew Planck

Astronomer, Teacher, Musician

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Month: March 2021

The Great Eastern Chain: A Conspicuous Chain of Large Craters on the Moon

The Great Eastern Chain on the Moon

The week of March 29 – April 4 takes us from Lunar Day 16 to Day 23. This week we will highlight a feature called The Great Eastern Chain, located in the SE quadrant of the Moon bordering Mare Fecunditatis.

Andrew Planck March 29, 2021March 28, 2021 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in March, Rilles on the Moon, Uncategorized No Comments Read more

Moon Crater Copernicus Has Been Justifiably Dubbed “The Monarch of the Moon”

Moon crater Copernicus has been justifiably dubbed The Monarch of the Moon

The week of March 22-28 takes us from Lunar Day 9 to Day 15. This week we will highlight the moon crater Copernicus, located in the NW quadrant just below Mare Imbrium. Copernicus:1 [NW/J7; L=20°W] Magnificent Copernicus has been justifiably

Andrew Planck March 22, 2021March 22, 2021 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in March No Comments Read more

Apennine Mountain Range: The Most Spectacular Feature on the Moon

The Apennine Mountain Range is the most spectacular feature on the Moon

The week of March 15-21 takes us from Lunar Day 2 to Day 8. This week we will highlight the Apennine Mountain range, located on the Field Map at [NW/G9] and viewable Sunday evening. Montes Apenninus: The Apennine Mountain Range

Andrew Planck March 15, 2021March 15, 2021 Dates to Observe Objects on the Moon, Lunar Days in March, Mountain Ranges on the Moon No Comments Read more

Mons Rümker: Lunar Dome on the Moon

Mons Rümker is an extensive complex of domes on the moon

The week of March 8-14 takes us from Lunar Day 25 to Day 2. This week we will highlight Mons Rümker, a complex of domes in the northern part of Oceanus Procellarum early Tuesday morning. Mons Rümker: [NW/E4] Unfortunately this

Andrew Planck March 8, 2021March 8, 2021 Dates to Observe Objects on the Moon, Domes on the Moon, Lunar Days in March No Comments Read more

Rupes Cauchy: One of the Best-Known Faults on the Moon

One of the best-known faults on the Moon is Rupes Cauchy

The week of March 1-7 takes us from Lunar Day 18 to Day 24. This week we will highlight Rupes Cauchy, located on the eastern portion of the Sea of Tranquility. Rupes Cauchy [NE/J13]: One of the best-known faults on

Andrew Planck March 1, 2021February 28, 2021 Dates to Observe Objects on the Moon, Faults on the Moon, Lunar Days in March, Rilles on the Moon 1 Comment 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
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