Solar eclipse of May 10, 2013

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Solar eclipse of May 10, 2013
Annular Solar Eclipse May 10 2013 Northern Territory Australia.JPG
Annularity viewed from Churchills Head, Australia.
Type of eclipse
Nature Annular
Gamma -0.2694
Magnitude 0.9544
Maximum eclipse
Duration 363 sec (6 m 3 s)
Coordinates 2°12′N 175°30′E / 2.2°N 175.5°E / 2.2; 175.5
Max. width of band 173 km (107 mi)
Times (UTC)
(P1) Partial begin 21:25:10
(U1) Total begin 22:30:34
Greatest eclipse 0:26:20
(U4) Total end 2:19:58
(P4) Partial end 3:25:23
Saros 138 (31 of 70)
Catalog # (SE5000) 9537

An annular solar eclipse took place on May 9–10 (UTC), 2013, with a magnitude of 0.9544. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.


Animation of eclipse path

Eclipse path

Annularity was visible from a 171 to 225 kilometre-wide track that traversed Australia, eastern Papua New Guinea, the Solomon Islands, and the Gilbert Islands, with the maximum of 6 minutes 3 seconds visible from the Pacific Ocean east of French Polynesia.


Related eclipses[edit]

Solar eclipses 2011-2014[edit]

Each member in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.[Note 1]

Tritos series[edit]

This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.

Metonic cycle[edit]

The metonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days).


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