Andrew Planck

Astronomer, Teacher, Musician

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catena on the moon

Moon Crater Humboldt – Best Viewed with Pronounced Libration

Moon Crater Humboldt – Best Viewed with Pronounced Libration

The week of September 22-28 takes us from Day 1 to Day 7. This week we will highlight the moon crater Humboldt, visible on Tuesday night close to the eastern edge. Humboldt1: [SE/M18] This moon crater is best viewed when

Andrew Planck September 22, 2025September 17, 2025 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in September 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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