![]() The November 2021 partial eclipse was longer than many total lunar eclipses. ![]() (This is close to the year the time-travel movie Bill & Ted’s Excellent Adventure begins!) Why So Long? The next time a partial lunar eclipse reaches this overall length will be on February 8, 2669. That was around the time the Incas were building the city of Machu Picchu in South America. The previous time a partial lunar eclipse was this long was on February 18, 1440. The overall duration of the November 2021 eclipse-from the moment the Moon entered Earth’s penumbra, to the moment it left-was around 21,693 seconds (about 6 hours 2 minutes).įor a non-total lunar eclipse-in other words, a lunar eclipse that only has penumbral and partial phases-this was an unusually long duration. The partial lunar eclipse of November 2021 was almost a total eclipse. Business Date to Date (exclude holidays).
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