NeshirDreams

New Eclipse Chart

by OneMrEagle on Aug.13, 2009, under Watch the Heavens

I’ve uploaded my new Eclipse Chart that I’ve finished today. Here is some information that needs to go on the page itself.

Now in November 3, 2013 there will be a Hybrid Solar Eclipse witch I didn’t know what that meant so I had to find out.

The Hybrid Eclipse

A hybrid, or annular/total, eclipse is an eclipse which is seen as annular by some parts of the Earth, and total by others (and also as a partial eclipse over a much larger area). This image illustrates how a hybrid eclipse can occur:

Here, the Moon is just far enough from the Earth that the umbra can’t reach the “sides” of the Earth, so as the eclipse begins, the western portions of the Earth see an annular eclipse as the day begins. In the diagram, observers in the upper and lower parts of the eclipse track will see an annular eclipse.

As the eclipse path moves on, the umbra has less far to travel to reach the Earth, and is just long enough to reach the “centre” (ie. the part most directly facing the Moon); so observers in the centre of the eclipse track see a total eclipse. Such an eclipse would have a magnitude greater than 1.000, since the magnitude given for an eclipse represents the magnitude at maximum eclipse; but during the ends of the eclipse, the magnitude is less than 1.000.

People standing near, but not in, the annular/total eclipse track, would see a normal partial eclipse.

With the Moon that far from the Earth, the visible total eclipse will be a pretty small eclipse — i.e. with a narrow track, and short duration. For example, in the hybrid eclipse of April 8 2005, the total part of the eclipse was visible for 42 seconds at its maximum point, and its track was no more than 27km wide.

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