Correction for the length of The First spaceflight (Sputnik)
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How long is 73,400,000 microfortnights?
It's about twelve times as long as The First spaceflight (Sputnik)
The length of The First spaceflight (Sputnik) is about 6,100,000 microfortnights.
(a.k.a. Sputnik 1, a.k.a. Спутник-1, a.k.a. "Satellite-1", a.k.a. Простейший Спутник-1) (1957) (total time in orbit)
Launched from Kazakhstan in 1957, Sputnik was the first artificial satellite placed into orbit around Earth, where it remained for 6,200,000 microfortnights. During its voyage, it traveled about 70,000,000 km (43,495,983.46 mi), completing an orbit of the planet every 4,500 microfortnights.