Andrew Planck

Astronomer, Teacher, Musician

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Equinox

Vernal Equinox – Can You Stand an Egg on its End?

Vernal Equinox – Can You Stand an Egg on its End?

The week of March 18-24 takes us from Day 12 to Day 19. This week we will highlight Mare Frigoris and the crater Shickard, viewable on Monday evening. Mare Frigoris: [NW-NE/D6-13] This is the only mare patch that isn’t even

Andrew Planck March 18, 2019March 18, 2019 Dates to Observe Objects on the Moon, Equinox, Lunar Days in March, Unusual Features on the Moon No Comments Read more

Moon Crater Timocharis Has Number of Complexities

Moon Crater Timocharis Has Number of Complexities

The week of March 20-26 takes us from Lunar Day 22 to Day 28, so the Moon is viewable only in the early morning hours. This week we will highlight the crater Timocharis in Mare Imbrium. Timocharis: [NW/G8] About three

Andrew Planck March 20, 2017March 20, 2017 Craters on the Moon, Equinox, Lunar Days in March No Comments Read more

Rupes Cauchy and Rupes Recta: Two of the Best Known Faults on the Moon

Rupes Cauchy and Rupes Recta: Two of the Best Known Faults on the Moon

The week of September 19th – 25th takes us from Lunar Day 18 through Day 24. On Monday the Moon will rise around 9:15 PM (depending on how far away you are from the center of your time zone). This

Andrew Planck September 19, 2016September 26, 2016 Equinox, Faults 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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  • Albategnius – How to Observe This Stunning Moon Crater Near the Terminator - June 30, 2025
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