Andrew Planck

Astronomer, Teacher, Musician

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Comets

A Sky Viewer’s Delight: Rilles, Craters and Comets

A Sky Viewer’s Delight: Rilles, Craters and Comets

The week of December 17-23 takes us from the end of Day 9 through Day 16. This week we will highlight Mare Humorum, the Hippalus rilles, the craters Gassendi, Gassendi A (all viewable on Tuesday evening), and Comet 46/P Wirtanen.

Andrew Planck December 17, 2018December 17, 2018 "Seas" on the Moon, Comets, Lunar Days in December, Mountain Ranges on the Moon, Rilles on the Moon, Unusual Features on the Moon No Comments Read more

Two Significant Areas on the Moon and the Geminid Meteor Shower

Two Significant Areas on the Moon and the Geminid Meteor Shower

The week of December 10-16 takes us from Day 3 through Day 8. This week we will highlight the crater Fracastorius and Mare Nectaris, the Sea of Nectar, viewable on Wednesday night, and the Geminid meteor shower which will peak

Andrew Planck December 10, 2018December 10, 2018 Comets, Lunar Days in December, Multi-ring basin on the moon, star clusters, Unusual Features 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
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