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Astronomer, Teacher, Musician

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Lunar Days in June

Mare Imbrium – One Time Multi-Ring Basin on the Moon

Mare Imbrium

The week of June 26-July 2nd takes us from Day 8 to Day 14. This week we will highlight Mare Imbrium on the moon, which should be 80% visible on Tuesday evening. The Moon has now entered its gibbous phase

Andrew Planck June 26, 2023June 28, 2023 Lunar Days in June, Multi-ring basin on the moon No Comments Read more

Rima Ariadaeus – Example of a Graben on the Moon

Rima Ariadaeus found on the moon.png

The week of June 19-25 takes us from Day 2 to Day 7. This week we will highlight Rima Ariadaeus, located in the NE quadrant of the Field Map at J11. Rima Ariadaeus: [NE/J11; L=14°E] The best place to see

Andrew Planck June 19, 2023June 19, 2023 Dates to Observe Objects on the Moon, Lunar Days in June, Rilles on the Moon No Comments Read more

Rille Rima Marius on the Moon

Rille Rima Marius on the Moon

The week of June 12-18 takes us from Day 25 to Day 1. This week we will highlight the rille Rima Marius on the moon (in the NW quadrant of the Moon Map at H5) and viewable early Tuesday morning.

Andrew Planck June 12, 2023June 8, 2023 Dates to Observe Objects on the Moon, Lunar Days in June, Rilles on the Moon No Comments Read more

The Flying Eagle on the Moon – Wrinkle Ridge Dorsum Oppel

The Flying Eagle and Mare Crisium on the moon

This week we will highlight the wrinkle ridge Dorsum Oppel, a feature informally known as “the Flying Eagle,” viewable on Saturday evening. The Flying Eagle: [NE/H15] As the lava cooled following the impact that created Mare Crisium, a series of

Andrew Planck June 27, 2022 Lunar Days in June, Unusual Features on the Moon, Wrinkle Ridge on the moon No Comments Read more

Aristillus and Autolycus: Well-Defined Complex Moon Craters

Aristillus and Autolycus moon craters

The week of June 20-26 takes us from Day 21 to Day 27. This week we will highlight the craters Aristillus and Autolycus, located in the N.E. quadrant of the Moon and viewable after midnight on Tuesday, June 21. Aristillus/Autolycus:

Andrew Planck June 20, 2022June 19, 2022 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in June, Splash Rays on the Moon No Comments Read more

Promontorium Agarum and the First Supermoon of 2022

Promontorium Agarum

The week of June 13-19 takes us from Day 14 to Day 20. This week we will highlight the feature known as Promontorium Agarum on Mare Crisium, viewable in the early morning hours of Wednesday, June 15. Promontorium Agarum: [NE/H16;

Andrew Planck June 13, 2022June 13, 2022 Dates to Observe Objects on the Moon, Lunar Days in June, Unusual Features on the Moon No Comments Read more

Crater Chain on the Moon – Catena Davy

Catena Davy crater chain on the moon

The week of June 6-12 takes us from Day 7 to Day 13. This week we will highlight the crater chain known as Catena Davy. Catena Davy: [SW/L9; L=7°W] This fascinating crater chain was made when a comet or asteroid

Andrew Planck June 6, 2022June 5, 2022 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in June No Comments Read more

Moon Crater Mare Nectaris: Example of Multi-Ring Basin

On the moon Mare Nectaris

The week of May 30-June 5 takes us from New Moon to Day 6. This week we will highlight the moon crater Mare Nectaris, viewable on Saturday evening, Day 5. Mare Nectaris: [SE/L13] The Nectaris basin was excavated 3.9 billion

Andrew Planck May 30, 2022May 28, 2022 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in June, Lunar Days in May, Multi-ring basin on the moon No Comments Read more

Moon Crater Walther and Moon Crater Deslandres

moon craters Walther and Deslandres

The week of June 28 – July 4 takes us from Lunar Day 19 to Day 24. This week we will highlight the craters Walther and Deslandres, viewable after midnight on Wednesday. Walther: [SW/N9] You will find this 87-mile crater

Andrew Planck June 28, 2021June 29, 2021 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in June, Unusual Features on the Moon No Comments Read more

Features of Moon Crater Seleucus and Bailly

moon crater Seleucus

The week of June 21-27 takes us from Lunar Day 12 to Day 19. This week we will highlight the craters Seleucus and Bailly, viewable on Wednesday night. Seleucus1: [NW/G3] Seleucus is an admirable little 27-mile crater sitting by itself

Andrew Planck June 21, 2021June 21, 2021 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in June 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)
  • Petavius: Floor-Fractured Moon Crater - June 15, 2026
  • Mare Humorum: “Sea of Moisture” Basin One of Best Examples of Subsidence - June 8, 2026
  • Moon Crater Bailly – Over 3 Billion Years Old - June 1, 2026
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