Andrew Planck

Astronomer, Teacher, Musician

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Mare Serenitatis

Mare Frigoris on the Moon and the Gargantuan Hypothesis

Mare Frigoris on the Moon and the Gargantuan Hypothesis

The week of January 30 to February 5 takes us from Lunar Day 10 to Day 15. This week we will highlight Mare Frigoris, located in the NE quadrant of the Field Map and viewable on Tuesday evening. Mare Frigoris:

Andrew Planck January 30, 2023January 25, 2023 Gargantuan hypothesis, Lunar Days in January No Comments Read more

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

Mare Frigoris: Only Lunar Mare Patch Not Circular

Mare Frigoris: Only Lunar Mare Patch Not Circular

The week of November 15-21 takes us from Day 12 to Day 17. This week we will highlight Mare Frigoris. Mare Frigoris: [NW-NE/D6-13; L=54°W] This is the only mare patch that isn’t even roughly circular, although its northern boundary has

Andrew Planck November 15, 2021November 14, 2021 Craters on the Moon, Dates to Observe Objects on the Moon, Lunar Days in November No Comments Read more

Largest dome on the Moon: Valentine Dome

Largest dome on the Moon: Valentine Dome

The week of September 2-8 takes us from Day 4 to Day 10. This week we will highlight the Valentine Dome, viewable on Thursday evening. Valentine Dome: [NE/F11] Keep a close eye on the movement of the terminator, and when

Andrew Planck September 2, 2019September 2, 2019 Dates to Observe Objects on the Moon, Domes on the Moon, Jupiter, Lunar Days in September, Saturn, Volcanic Dome No Comments Read more

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