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Photograped by by Mila Zinkova in San Francisco, California on June 4, 2005.

Some of the night fog was still present, but the sun behind me was very bright. Here's how " Andy Young explains the picture: "These are essentially crepuscular rays, formed in the remaining fog by the light reflected from the windows of the building. Somebody referred me to a similar picture about a year ago -- it might even have been the same building.

The fog droplets are fairly large, so they're strongly forward-scattering. That limits the angular length of the rays, which don't extend very far from the image of the Sun formed behind each window. That makes these really *crepuscular* rather than anti-crepuscular rays; they're seen in the anti-solar direction because that's where the light source (the reflection of the Sun in a window) is.

It's quite a pretty effect, isn't it"

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current03:20, 15 April 20071,024×768 (436 KB)Mbz1 (Talk | contribs) (Some of the night fog was still present, but the sun behind me was very bright. Here's how Andy Young <a href="http://mintaka.sdsu.edu/GF/"> Green Flash</a> explains the picture: &quot;These are essentially crepuscular rays, formed in the remaining fog)