Skip to content

Andrew Planck

Astronomer, Teacher, Musician

Menu

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

Month: December 2019

Rima Hyginus on the Moon and Is Betelgeuse Going Supernova?

Rima Hyginus (the Hyginus Rille) on the moon

The week of December 30 – January 5 takes us from Day 4 to Day 10. This week we will highlight Rima Hyginus (the Hyginus Rille), viewable on Thursday evening, and the Quadrantid meteor shower. Rima Hyginus: [NE/J10;] At the

Andrew Planck December 30, 2019December 30, 2019 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in January, Rilles on the Moon, Unusual Features on the Moon No Comments Read more

Not Just on Star Trek: Moon Craters Peirce & Picard and the Wrinkle Ridge Dorsum Oppel

Peirce & Picard on the Moon

The week of December 23-29 takes us from Day 27 to Day 3. This week we will highlight the craters Peirce & Picard and the wrinkle ridge Dorsum Oppel, viewable on Sunday evening. Peirce & Picard: [NE/H15] The two largest

Andrew Planck December 23, 2019 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in December, Ridges on the Moon, Unusual Features on the Moon No Comments Read more

Finger-Like Projections on the Moon: Mare Vaporum

Mare Vaporum and Sinus Medii on the moon

The week of December 16-22 takes us from Day 19 to Day 26. This week we will highlight Mare Vaporum, viewable early Wednesday morning, and the Winter Solstice. Mare Vaporum: [NE/H10; L=4°E] Notice how there are finger-like projections extending from

Andrew Planck December 16, 2019December 15, 2019 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in December, Unusual Features on the Moon No Comments Read more

Geminid Meteor Shower and Moon Craters Wargentin, Nasmyth and Phocylides

Moon craters Nasmyth, Phocylides and Wargentin

The week of December 9-15. takes us from Day 12 to Day 18. This week we will highlight the craters Wargentin, Nasmyth & Phocylides plus the Geminid meteor shower. Wargentin: [SW/P4] (Depending on libration, you may have to wait until

Andrew Planck December 8, 2019December 8, 2019 Craters on the Moon, Lunar Days in December, Unusual Features on the Moon No Comments Read more

The History and Beauty of Moon Craters Linné and Cassini

Moon craters Linné and Cassini

The week of December 2 – 8 takes us from Day 6 to Day 11. This week we will highlight the craters Linné and Cassini, viewable on Tuesday evening. Linné: [NE/G11] Linné is a simple, relatively young crater with an

Andrew Planck December 2, 2019December 1, 2019 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in December 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.