Andrew Planck

Astronomer, Teacher, Musician

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Moon Craters Posidonius and le Monnier – Examples of Subsidence

Moon Craters Posidonius and le Monnier – Examples of Subsidence

The week of March 7-13 takes us from Day 5 to Day 11. This week we will highlight moon craters Posidonius and le Monnier, viewable on Tuesday evening. Posidonius/le Monnier: [NE/F-G13; L=30°E] There are only two craters of any consequence

Andrew Planck March 7, 2022 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in March, Subsidence on the Moon No Comments Read more

Two Largest Intact Moon Craters on Mare Crisium: Peirce and Picard

Two Largest Intact Moon Craters on Mare Crisium: Peirce and Picard

The week of February 28 – March 6 takes us from Day 27 to Day 4. This week we will highlight moon craters Peirce & Picard, which are viewable on Sunday evening. Peirce & Picard: [NE/H15; L=54°E] The two largest

Andrew Planck February 28, 2022February 27, 2022 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in February, Lunar Days in March No Comments Read more

Moon Crater Cassini – Created on Imbrium Floor Before Lavas Started to Flow

Moon Crater Cassini – Created on Imbrium Floor Before Lavas Started to Flow

The week of February 21-27 takes us from Day 20 to Day 26. This week we will highlight the moon crater Cassini, viewable early Tuesday morning in the NE quadrant of the Field Map. Cassini: [NE/E10; L=5°E] Can you tell

Andrew Planck February 21, 2022February 20, 2022 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in February, Unusual Features on the Moon No Comments Read more

The Flying Eagle on the Moon: Wrinkle Ridge Dorsum Oppel

The Flying Eagle on the Moon: Wrinkle Ridge Dorsum Oppel

The week of February 14-20 takes us from Day 13 to Day 19. This week we will highlight the wrinkle ridge Dorsum Oppel, a feature informally known as “the Flying Eagle,” viewable on Thursday & Friday night. The Flying Eagle:

Andrew Planck February 14, 2022February 14, 2022 Lunar Days in February, Uncategorized, Unusual Features on the Moon, Wrinkle Ridge on the moon No Comments Read more

Moon Crater Rima Hyginus: Located at a Pivot Point

Moon Crater Rima Hyginus: Located at a Pivot Point

The week of February 7-13 takes us from Day 7 to Day 12. This week we will highlight Rima Hyginus and Rima Ariadaeus, located in the NE quadrant at J10 & J11 on your field map. Rima Hyginus: [NE/J10; L=8°E]

Andrew Planck February 7, 2022February 7, 2022 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in February, Rilles on the Moon No Comments Read more

Messier and Messier A: Small Pair of Moon Craters on the Sea of Fertility

Messier and Messier A: Small Pair of Moon Craters on the Sea of Fertility

The week of January 31 – February 6 takes us from Day 29 to Day 6. This week we will highlight the moon craters Messier and Messier A, viewable on Friday night. Messier1: [SE/K14] One of my favorite objects on

Andrew Planck January 31, 2022January 30, 2022 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in February, Lunar Days in January No Comments Read more

3 Interesting Facts About Moon Crater Plato

3 Interesting Facts About Moon Crater Plato

The week of January 24-30 takes us from Day 21 to Day 28. This week we will highlight the moon crater Plato, viewable on Monday and Tuesday nights. Plato: [NW/D9; L=9°W] When the terminator is a little to the east

Andrew Planck January 24, 2022January 23, 2022 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in January, Unusual Features on the Moon No Comments Read more

Geminus and Burckhardt: Two Unique Moon Craters

Geminus and Burckhardt: Two Unique Moon Craters

The week of January 17-23 takes us from Full Moon to Day 21. This week we will highlight the moon craters Geminus and Burckhardt, viewable on Tuesday and Wednesday nights. Geminus: [NE/F15] Roughly 200 miles north of Mare Crisium 1

Andrew Planck January 17, 2022January 16, 2022 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in January No Comments Read more

Most Spectacular Example of Subsidence on the Moon: Sinus Iridum

Most Spectacular Example of Subsidence on the Moon: Sinus Iridum

The week of January 10-16 takes us from Day 9 to Day 14. This week we will highlight Sinus Iridum, viewable on Wednesday and Thursday evenings. Sinus Iridum: [NW/E6; L=32°W] Sinus Iridum (the Bay of Rainbows), located in the northwest

Andrew Planck January 10, 2022January 9, 2022 Dates to Observe Objects on the Moon, Lunar Days in January, Subsidence on the Moon No Comments Read more

Peirce and Picard: Two Largest Intact Moon Craters on Mare Crisium

Peirce and Picard: Two Largest Intact Moon Craters on Mare Crisium

The week of January 3-9 takes us from Day 2 to Day 8. This week we will highlight the craters Peirce and Picard located in the NE quadrant of the Field Map and viewable on Wednesday evening. Peirce & Picard:

Andrew Planck January 3, 2022January 3, 2022 Dates to Observe Objects on the Moon, Intact Moon Craters, Lunar Days in January, Unusual Features on the Moon No Comments Read more
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