The longest lunar eclipse in centuries will happen this week, NASA says. What to know

A partial lunar eclipse will occur during the pre-dawn hours on Nov. 19, when the moon will officially be at its fullest phase. Various views of the Super Blood Wolf Moon eclipse on January 20, 2019, in Burbank, CA, United States. (Kevin Winter/Getty Images/TNS)

You can see the longest partial lunar eclipse in hundreds of years this week.