This is a photo of star trails over the
href="http://www.friendsofthebosque.org/">Bosque del Apache
National Wildlife Refuge. The anomaly in the upper
left is an "
rel="tag">Iridium flare," a reflection from
an
href="http://en.wikipedia.org/wiki/Iridium_%28satellite%29"
title="Iridium (satellite)">Iridium communication
satellite.
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Photo by
href="http://www.flickr.com/people/fortphoto/">Fort Photo on
Flickr. His Flickr page (click the photo) has an explanation
of the phenomena in the photo, as well as a link to the full-sized,
noncompressed version.