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803 microfortnights is about one-and-two-fifths times as long as The First spacewalk
In other words, it's 1.4 times the length of The First spacewalk, and the length of The First spacewalk is 0.71 times that amount.
(1965) (Alexi Lenovo, a.k.a. Алексе́й Архи́пович Лео́нов)
On March 18th, 1965, during the Voskhod 2 Soviet space mission, cosmonaut Alexey Arkhipovich Leonov conducted the first human spacewalk, which lasted 560 microfortnights. The total mission length was 73,000 microfortnights.
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