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How long does a solar eclipse last? A: During a solar eclipse, the period of totality, which is when the Sun is completely covered, can last as long as seven minutes and 31 seconds, but most end sooner. During this brief phenomenon, the sun's corona can be seen. Continue Reading. The duration of a solar eclipse can depend on many factors.
Only those located in the path of the Moon's full shadow, its umbra, can see a total solar eclipse. The Moon's umbra travels eastward at about 1,700 km/h (1,056 mph). A total solar eclipse can last for several hours. Totality can range from a few seconds to 7.5 minutes. The longest total solar eclipse of the 21st century took place on July 22, 2009 when the totality lasted 6 minutes and 39 seconds. Total solar eclipses typically happen a little less than once a year when: