Annular solar eclipse on May 9/10, 2013

annular-solar-eclipse-on-may-910-2013

An annular solar eclipse will take place on May 9/10, 2013, with a magnitude of 0.9544. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partially 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, causing the Sun to look like an annulus (ring), blocking most of the Sun’s light. An annular eclipse appears as a partial eclipse over a region thousands of kilometres wide. This annular eclipse is also start of Saros 138 cycle.

This map shows the extent of the annular solar eclipse (Credit: EclipseMaps)

Annularity will be visible from northern Australia and the southern Pacific Ocean, with the maximum of 6 minutes 3 seconds visible from the Pacific Ocean east of French Polynesia. Those in northern Australia will be able to see the full annular eclipse, while those further south will still be able to see a partial eclipse. As the eclipse moves across the Pacific Ocean it will cross the International Date Line, meaning that the eclipse will actually be visible in Hawaii on the 9th not the 10th.

Orthographic map (Credit: GSFC/NASA)

Like total solar eclipses, annular solar eclipses are quite rare. They can only be observed during New Moon, when the Sun is near one of the nodes of the lunar orbit, so Earth, Sun and Moon form a straight line, the Moon is at apogee and the observer is located in the path of the Moon’s antumbra.

The scheme of annular solar eclipse (Credit: Buzzle/TW)

Sources: Eclipse.GSFC, Mr.Eclipse

Featured image:  The Annular solar eclipse is seen in Yokohama, near Tokyo, Japan on May 21, 2012. (Credit: Katsuro Okazawa)

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0 Comments

  1. Awesome i am just wondering what would happen if a high class solar flair was pointed straight at earth. What would it do? and should i prepare for such of an event or resort to solar technology?

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