Andrew Planck

Astronomer, Teacher, Musician

Menu

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

Lunar Days in July

The Longest Distinct Valley on the Moon – Rheita Valley

The Longest Distinct Valley on the Moon – Rheita Valley

The week of July 28 – August 3 takes us from Day 4 to Day 10. This week we will highlight the Rheita Valley on the moon, visible on Tuesday night close to the terminator. Vallis Rheita: [SE/N14; L=52°E] At

Andrew Planck July 28, 2025July 28, 2025 Lunar Days in August, Lunar Days in July, Moon craters, Valleys on the Moon No Comments Read more

Moon Crater Humboldt

Moon Crater Humboldt

The week of July 21-27 takes us from Day 27 to Day 3. This week we will highlight the moon crater Humboldt, visible on Saturday night close to the terminator. Humboldt:1 [SE/M18] This moon crater is best viewed when there

Andrew Planck July 21, 2025July 17, 2025 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in July, Moon craters No Comments Read more

Moon Crater Maurolycus in the Lunar Highlands

Moon Crater Maurolycus in the Lunar Highlands

The week of July 14-20 takes us from Day 20 to Day 26. This week we will highlight the moon crater Maurolycus, visible on Tuesday night close to the terminator. Maurolycus: [SE/P11; L=14°E] Let us venture briefly into a region

Andrew Planck July 14, 2025July 9, 2025 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in July No Comments Read more

Moon Crater Janssen Located 85 miles Southwest of the Rheita Valley

Moon Crater Janssen Located 85 miles Southwest of the Rheita Valley

The week of July 7-13 takes us from Day 13 to Day 19. This week we will highlight the moon crater Janssen, visible on Saturday and Sunday nights close to the terminator. Janssen: [SE/P13; L=40°E] Janssen is located 85 miles

Andrew Planck July 7, 2025July 3, 2025 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in July, Moon craters, Rilles on the Moon No Comments Read more

Series of Rilles on the Moon: Rimae Sirsalis

Series of Rilles on the Moon: Rimae Sirsalis

The week of July 29 – August 4 takes us from Day 24 to New Moon. This week we will highlight a series of rilles called Rimae Sirsalis, located in the SW quadrant of the Field Map and viewable on

Andrew Planck July 29, 2024July 30, 2024 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in August, Lunar Days in July, Rilles on the Moon, Uncategorized No Comments Read more

Rupes Cauchy: A Best Known Fault on the Moon

Rupes Cauchy: A Best Known Fault on the Moon

The week of July 22-28 takes us from Day 17 to Day 23. This week we will highlight Rupes Cauchy, viewable on Wednesday night and located in the NE quadrant of the Field Map at J13. Rupes Cauchy: [NE/J13; L=37°

Andrew Planck July 22, 2024July 19, 2024 Dates to Observe Objects on the Moon, Faults on the Moon, Lunar Days in July, Rilles on the Moon No Comments Read more

Moon Crater Schickard – Crater Floor has Stripes

Moon Crater Schickard – Crater Floor has Stripes

The week of July 15-21 takes us from Lunar Day 10 to Day 16. This week we will highlight the moon crater Schickard, viewable on Thursday night and located in the SW quadrant of the Field Map at P4. Schickard:

Andrew Planck July 15, 2024July 11, 2024 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in July, Moon craters No Comments Read more

Moon Craters Langrenus and Vandelinus

Moon Craters Langrenus and Vandelinus

The week of July 8-14 takes us from Lunar Day 2 to Day 8. This week we will highlight the moon craters Langrenus and Vandelinus, in the SE quadrant of the Field Map at K16. They are viewable on Tuesday

Andrew Planck July 8, 2024June 27, 2024 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in July, Moon craters No Comments Read more

Pythagoras: Complex Moon Crater with Two Central Mountain Peaks

Pythagoras: Complex Moon Crater with Two Central Mountain Peaks

The week of July 1-7 takes us from Lunar Day 25 to Day 2. This week we will highlight the moon crater Pythagoras, located to the West of Mare Frigoris in the NW quadrant of the Field Map at C3.

Andrew Planck July 1, 2024July 1, 2024 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in July, Moon craters No Comments Read more

Eudoxus: Complex Moon Crater

Eudoxus: Complex Moon Crater

The week of July 31 – August 6 takes us from Day 14 to Day 21. This week we will highlight the moon crater Eudoxus, viewable early Sunday morning before sunrise. Eudoxus: [NE/E11; L=16°E] Both Eudoxus and Aristoteles to its

Andrew Planck July 31, 2023July 30, 2023 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in August, Lunar Days in July No Comments Read more
  • « Previous

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)
  • Sinus Iridum – The Bay of Rainbows Located in the Northwest Sector of Mare Imbrium - February 9, 2026
  • Moon Crater Endymion - February 2, 2026
  • Moon Crater Plato - January 26, 2026
Copyright © 2026 Andrew Planck. Powered by WordPress. Theme: Spacious by ThemeGrill.