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Fred Espenak

Total eclipse of sun: August 21, 2017

All you need to know about the 1st total solar eclipse visible from the contiguous U.S. since 1979, from eclipse master Fred Espenak.

Moon in 2017

Everything you want to know about the moon in 2017 – including phases, cycles, eclipses and supermoons – from world-renowned astronomer Fred Espenak.

Astronomical events in 2016

A month by month listing of major moon phases, conjunctions, oppositions, meteor showers and other important dates, from astronomer Fred Espenak.

Total solar eclipses in the USA

If you miss the total solar eclipse of August 21, 2017 – first such eclipse in contiguous U.S. since 1979 – you’ll have to wait until 2024 to see the next one.

March 20 eclipse and the Saros

There are currently 40 different Saros series in progress, each with its own assigned number. The total solar eclipse of March 20, 2015 belongs to Saros 120.