Andrew Planck

Astronomer, Teacher, Musician

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subsidence

One of the Moon’s Best Examples of Subsidence: Moon Crater Fracastorius

One of the Moon’s Best Examples of Subsidence: Moon Crater Fracastorius

The week of March 20-26 takes us from Day 29 to Day 6 This week we will highlight the moon crater Fracastorius, located in the SE quadrant of the Field Map and viewable on Sunday night. Fracastorius: [SE/M13; L=33°E] Located

Andrew Planck March 20, 2023 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in March, Rilles on the Moon No Comments Read more

Mare Humorum: One of the Best Examples of Subsidence on the Moon

Mare Humorum: One of the Best Examples of Subsidence on the Moon

The week of April 11-17 takes us from Day 10 to Day 16. This week we will highlight Mare Humorum on the moon, viewable on Tuesday evening. Mare Humorum: [SW/M6] The Humorum basin is one of the best examples of

Andrew Planck April 11, 2022April 11, 2022 Dates to Observe Objects on the Moon, Lunar Days in April, Subsidence on the Moon No Comments Read more

Sinus Iridum – Bay of Rainbows – The Largest and Most Spectacular Example of Subsidence on the Moon

Sinus Iridum – Bay of Rainbows – The Largest and Most Spectacular Example of Subsidence on the Moon

The week of June 8-14 takes us from Lunar Day 18 to Day 23. This week we will highlight Sinus Iridum, viewable early Sunday morning. Sinus Iridum: [NW/E6] Sinus Iridum (the Bay of Rainbows), located in the northwest sector of

Andrew Planck June 8, 2020June 7, 2020 Lunar Days in June, 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)
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