Poop is correct. The shutter on my Rolleiflex broke that night; speeds 1/125 and 1/250 still function but anything slower and the shutter will remain open. That light streak effect was created accidentally when I tilted the camera on the tripod after the shutter was supposed to close.
After I had uploaded the photo, I had gone in and tweaked the saturation a bit and replaced the photo on Flickr and that broke the link. Link should be fine now :) Just before I went to bed I looked at the moon again and I did see that. As it moved thru the sky the white portion on the moon changed sides.