Inaccurate articles/headlines
https://www.yahoo.com/news/longest-lunar-eclipse-centuries-happen-183041926.html
https://www.yahoo.com/lifestyle/longest-lunar-eclipse-580-years-174000254.html
It is NOT the longest lunar eclipse in centuries. It is the longest PARTIAL lunar eclipse in centuries. Please check your facts.
https://www.space.com/beaver-moon-lunar-eclipse-longest-of-century-phases
It is the longest partial lunar eclipse because it will barely not be a total lunar eclipse. Because the eclipse will be partial, but will traverse nearly as much of the earth's shadow as it possibly can without being actually full (over 97% in earth's shadow), it will be the longest partial lunar eclipse.
https://cdn.mos.cms.futurecdn.net/bNqvGnnDiodZkDfWcvvEXW-970-80.jpg