Friday, October 3, 2014

APOD 1.6

A Full Circle Rainbow over Australia: http://apod.nasa.gov/apod/ap140930.html

From the air, a full 360 degree rainbow can be seen. When a rainbow is seen from the ground it's only a partial one because directions toward the ground lack a lot of raindrops. This rainbow was seen over Cottesloe Beach, which is near Perth, Australia. It was captured from a helicopter while the sun was setting during a downpour. The rainbow appeared to "follow" the helicopter for 5 kilometers since it's an observer-dependent phenomenon. I have never seen a full rainbow before and find this really fascinating. I also love the faint second rainbow surrounding it, but the second rainbow has reversed colors. I hope I can see one of these one day.

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