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Andrew Planck

Astronomer, Teacher, Musician

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Month: May 2026

Moon Crater Schickard has Stripes

Moon crater Schickard closer view on the surface of the moon

The week of May 11-17 takes us from Day 25 to Day 1.  This week we will highlight the moon crater Schickard, visible on Tuesday night close to the terminator. Schickard: [SW/P4; L=55°W] When you look at Schickard, you should

Andrew Planck May 11, 2026May 7, 2026 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in May No Comments Read more

Examples of Subsidence on the Moon: Moon Craters Posidonius and le Monnier

Posidonius and le Monnier on the surface of the moon

The week of May 4-10 takes us from Day 18 to Day 24.  This week we will highlight the moon craters Posidonius & le Monnier, visible on Tuesday night close to the terminator. Posidonius/le Monnier: [NE/F-G13; L=30°E] There are only

Andrew Planck May 4, 2026May 4, 2026 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in May, Moon craters, Subsidence 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)
  • Moon Crater Schickard has Stripes - May 11, 2026
  • Examples of Subsidence on the Moon: Moon Craters Posidonius and le Monnier - May 4, 2026
  • Endymion – Moon Crater - April 27, 2026
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