Friday, September 28, 2012

APOD 1.5

Equinox: The Sun from Solstice to Solstice
On September 22nd it was the Autumnal Equinox, a time when the Sun hasd completed a full cycle and the day and night are equal. This only happens twice a year, once now and then again for the Summer equinox. An Equinox occurs between two solstices, between the summer solstice and the winter solstice. These are both important days for the astronomical world because it only happens twice a year, and they can take advantage to study the Sun's patterns. If you take pictures and compare them to past years this is what happens, and one can see how the earth and sun are changing. This can also help predict the seasons, it is a very important day of the year.

See Explanation.  Clicking on the picture will download
 the highest resolution version available.

1 comment:

  1. This entry is very interesting due to the fact that it only happens twice a year! I love the picture and the fish eye effect because it allows you to see the complete orbit of the sun and the colors are magnificent!

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