When was the last Supermoon?
By one Supermoon definition, the last time the Moon was super was on February 9 this year.
Astrologer Richard Nolle is credited with coining the term Supermoon in 1979, by describing it as a Full Moon within 90 percent of its closest approach to Earth.
In other words, a Full Moon is super when it comes within 224,865 miles (361,885) or less of our planet.
By this definition, there are four Supermoons this year: February 9, March 9, April 8 and May 7.