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Month: April 2019

The Goldilocks Zone – Just Right for Life to Form in Our Galaxy

The Goldilocks Zone - Just Right for Life to Form in Our Galaxy

The week of April 29 – May 5 takes us from lunar Day 25 to Day 1. This week the Moon is, for all practical purposes, not viewable. On Monday morning it rises during bright morning twilight, and for the

Andrew Planck April 29, 2019May 6, 2019 Dates to Observe Objects on the Moon, Galaxies, Lunar Days in April No Comments Read more

Two of the Best-Known Faults on the Moon

Rupes Cauchy on the Moon

The week of April 22-28 takes us from Day 18 to Day 24. This week we will highlight Rupes Cauchy, viewable early Tuesday morning. Rupes Cauchy1: [NE/J13; L=37°E] Two of the best-known faults on the Moon are Rupes Cauchy and

Andrew Planck April 22, 2019April 21, 2019 Faults on the Moon, Lunar Days in April, Lunar Observers, Rilles on the Moon No Comments Read more

The Bay of Rainbows and Black Holes

Sinus Iridum, the Bay of Rainbows, located in the northwest sector of Mare Imbrium

The week of April 15-21 takes us from Day 11 to Day 17. This week we will highlight Sinus Iridum, viewable on Monday evening. Sinus Iridum: [NW/E6] Sinus Iridum (the Bay of Rainbows), located in the northwest sector of Mare

Andrew Planck April 15, 2019April 14, 2019 Apps for Observing the Moon and Objects, Dates to Observe Objects on the Moon, Lunar Days in April, Unusual Features on the Moon No Comments Read more

Moon Crater Gutenberg and its Historical Significance

Moon crater Gutenberg

The week of April 8-14 takes us from Day 3 to Day 9. This week we will highlight the crater Gutenberg, viewable on Monday and Tuesday evenings. Gutenberg: [SE/K14] On Monday and Tuesday night, you check out the western edge

Andrew Planck April 8, 2019April 7, 2019 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in April 1 Comment Read more

Why We Have Seasons and How it Affects the Moon

Why We Have Seasons and How it Affects the Moon

The week of April 1-7 takes us from lunar Day 26 to Day 2. This week the Moon is, for all practical purposes, not viewable. On Monday morning, it rises during bright morning twilight, and on Sunday evening, April 7,

Andrew Planck April 1, 2019March 31, 2019 Lunar Days in April 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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