September. Half-Saros cycle A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros). This lunar eclipse is related to two total solar eclipses of solar saros 139. Lunar year series The eclipse is the one of four lunar eclipses in a short-lived series at the ascending node of the moon's orbit. The lunar year series repeats after 12 lunations, or 354 days (shifting back about 10 days in sequential years). Because of the date shift, the Earth's shadow will be about 11 degrees west in sequential events. Saros series Tzolkinex Preceded: Lunar eclipse of February 20-21, 2008 Followed: Lunar eclipse of May 15-16, 2022 See also List of lunar eclipses and List of 21st-century lunar eclipses Notes External links Hermit Eclipse: Total Lunar Eclipse: April 4, 2015 Mattastro.com Total Lunar Eclipse: April 4, 2015 Full Moon in Earth's Shadow APOD 2015 April 8 2015-04 2015 in science April 2015 events