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Andrew Planck

Astronomer, Teacher, Musician

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Month: June 2021

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

Sabine & Ritter: Moon Craters West of the Apollo 11 Landing Site

floor fractured moon craters sabine and ritter

The week of June 14-20 takes us from Lunar Day 4 to Day 11. This week we will highlight the craters Sabine & Ritter, located near the S.W. shore of Tranquillity. Sabine & Ritter: [NE/J11] About 60 miles west of

Andrew Planck June 14, 2021June 14, 2021 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in June No Comments Read more

Lunar Basin Grimaldi and Lunar Transient Phenomena

Grimaldi is a genuine basin on the moon

The week of June 7 – 13 takes us from Lunar Day 27 to Day 3. This week we will highlight the lunar basin Grimaldi, located near the western limb of the Moon. Grimaldi has a very dark floor and

Andrew Planck June 7, 2021June 6, 2021 Dates to Observe Objects on the Moon, Lunar Basin, 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)
  • One of the Moon’s Loveliest Sights – Moon Crater Plato - March 9, 2026
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