Friday, September 27, 2013

APOD 1.5

This weeks APOD is a photo that was released on September 22nd and is really amazing. It is called "Apollo's Anamella"
This is a time lapse photo taken by a camera over the course of an entire year. Every 24 hours, this camera would take a photo of the sun on one piece of 35 mm film.That right there is an achievement since the person had to find a place that would not disturb this camera at all. The curve that the multiple suns make up that looks kind of like a skewed infinite symbol is called a Analemma. The average length of a day is 24 hours but this photo allows us to see that, because of the elliptic curve of the rotation, the hours vary by a little bit that makes a big difference over time. This is a sort of symbolical photo since the structure under the multiple suns is actually the temple of Apollo which is the god of the sun. The point where the two loops meet in this stitched photo is actually the time of the equinox. This photo captures how there is so much we don't even notice in our skies every day and how much a little change from a perfect circle in our rotation can make such an amazing difference over the course of a single year.

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