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Month: August 2020

Mare Crisium: Multi-Ring Imprint From Impact of Large Meteor

Mare Crisium and Promentorium Agarum two moon craters

The week of August 31-Sept. 6 takes us from Lunar Day 13 to Day 19. This week we will highlight Mare Crisium and Promentorium Agarum, viewable on Thursday evening (Day 16.6). Mare Crisium: [NE/H15] On Thursday evening you should be

Andrew Planck August 31, 2020August 30, 2020 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in August No Comments Read more

Moon Crater Plato: One of the Moon’s Loveliest Sights

Moon crater Plato

The week of August 24-30 takes us from Lunar Day 6 to Day 12. This week we will highlight the crater Plato, viewable on Wednesday evening. Plato: [NW/D9] On Wednesday evening, you will witness one of the Moon’s loveliest sights.

Andrew Planck August 24, 2020August 24, 2020 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in August No Comments Read more

Moon Crater Janssen: Like Visiting the Ruins of an Old Castle

Moon crater Janssen is located 85 miles southwest of the Rheita Valley

The week of August 17-23 takes us from Lunar Day 28 to Day 5. This week we will highlight the crater Janssen, observable on Sunday evening. Janssen: [SE/P13] Janssen is located 85 miles southwest of the Rheita Valley (which you

Andrew Planck August 17, 2020August 17, 2020 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in August, Rilles on the Moon No Comments Read more

Moon Crater Bullialdus: Most Conspicuous Crater on Mare Nubium

Moon crater Bullialdus

The week of August 10-16 takes us from Lunar Day 22 to Day 27. This week we will highlight the crater Bullialdus, visible on Wednesday morning, and the Perseid meteor shower. Bullialdus: If you recall what Tycho looked like yesterday

Andrew Planck August 10, 2020August 10, 2020 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in August, Meteor Shower No Comments Read more

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

The Great Eastern Chain on the Moon

The week of August 3-9 takes us from Lunar Day 15 (Full Moon) to Day 28. This week we will highlight a feature called The Great Eastern Chain, viewable on Wednesday, Day 17. The Great Eastern Chain: [SE/K-N16] There is

Andrew Planck August 3, 2020August 2, 2020 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in August, 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)
  • One of the Moon’s Loveliest Sights – Moon Crater Plato - March 9, 2026
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  • Maurolycus – Moon Crater in the Lunar Highlands - February 23, 2026
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