Eclipses 2013

Retrograde windows run from the station-retrograde day to the station-direct day, both counted, in UTC — the same windows as the 2013 retrograde calendar.

Eclipses and times of greatest eclipse are computed with astronomy-engine and checked against NASA’s eclipse catalog; see the method.

01When are the eclipses in 2013?

Partial lunar: 25 Apr 2013, 5° Scorpio; Annular solar: 10 May 2013, 19° Taurus; Penumbral lunar: 25 May 2013, 3° Sagittarius; Penumbral lunar: 18 Oct 2013, 25° Aries; Hybrid solar: 3 Nov 2013, 11° Scorpio. Times of greatest eclipse are on this page, in UTC.

02When is eclipse season in 2013?

18 Apr 2013 to 25 May 2013 (south node); 12 Oct 2013 to 17 Nov 2013 (north node). A season here is every UTC day on which the Sun stands within 18.5° of one of the Moon’s nodes.

03Which planets were retrograde during the 2013 eclipses?

Partial lunar eclipse on 25 Apr: Retrograde that day: Saturn and Pluto. Annular solar eclipse on 10 May: Retrograde that day: Saturn and Pluto. Penumbral lunar eclipse on 25 May: Retrograde that day: Saturn and Pluto. Penumbral lunar eclipse on 18 Oct: Retrograde that day: Uranus and Neptune. Hybrid solar eclipse on 3 Nov: Retrograde that day: Mercury, Uranus and Neptune. It falls on day 14 of a 21-day Mercury retrograde.

04What is an eclipse season?

The Moon’s orbit is tilted about five degrees to the Sun’s path, so most new and full moons pass above or below the Sun or Earth’s shadow. Twice a year, for about five weeks, the Sun stands near one of the two points where the orbits cross, the nodes; any new or full moon then is close enough to the node to cast or catch a shadow. Every season has at least two eclipses, a solar and a lunar, and sometimes three.