Skip to content

Andrew Planck

Astronomer, Teacher, Musician

Menu

  • Home
  • About
  • Shop
    • Cart
    • Checkout
  • Blog
  • Services
  • Resources
  • Contact

Month: April 2016

Cauchy Domes on the Moon and Saturn a Showstopper: Lunar Days 18-24

Cauchy Domes on the Moon and Saturn a Showstopper: Lunar Days 18-24

The week of April 25-May 1st takes us from lunar Day 18 through Day 24. Full moon has passed and the terminator has advanced enough that we can begin to see clearly delineated features close to it. This week we

Andrew Planck April 25, 2016April 24, 2016 Cauchy Domes on the Moon, Jupiter, Lunar Days in April, Saturn No Comments Read more

Lunar Swirls: Reiner Gamma – Eerily Reminiscent of Crop Circles

Reiner Gamma Lunar Swirl

The week of April 18-24 takes us from lunar Day 12 through Day 17. Full Moon will be on Thursday. This week we will highlight lunar swirls. Reiner Gamma: [NW/J4; L=59°W] (Visible starting Tues.) Lunar swirls are absolutely flat features

Andrew Planck April 18, 2016April 18, 2016 Lunar Days in April, Lunar Swirls No Comments Read more

The Most Imposing Trio of Craters on the Moon: Theophilus, Cyrillus, Catharina

Theophilus, Cyrillus, Catharina - most imposing trio of craters on the moon

The week of April 11-17 takes us from lunar Day 5 through Day 11. This is one of the best windows to do viewing of the Moon! Close to the terminator it is sunrise on the Moon and because of

Andrew Planck April 11, 2016April 11, 2016 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in April No Comments Read more

Lunar Objects the week of April 4 – 10: The complex crater Pythagoras and Arcturus Lighting Up the 1933 World’s Fair in Chicago

Lunar Objects the week of April 4 – 10 The complex crater Pythagoras

The week of April 4 – 10 takes us from lunar Day 26 through Day 4. During most of the week, the Moon will not be in a good position to be observed. On Monday morning, the Moon is just

Andrew Planck April 4, 2016April 5, 2016 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in April No Comments Read more

Categories

Fill out my online form.

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

  • Author
  • Recent Posts
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)
  • One of the Moon’s Loveliest Sights – Moon Crater Plato - March 9, 2026
  • Moon Crater Endymion Resembles Plato - March 2, 2026
  • Maurolycus – Moon Crater in the Lunar Highlands - February 23, 2026
Copyright © 2026 Andrew Planck. All rights reserved. Theme Spacious by ThemeGrill. Powered by: WordPress.