Photographing the International Space Station
As soon as I opened the shutter a bright object appeared over the horizon. At first we thought it was yet another airplane approaching SFO or Oakland airports. But when we noticed it had none of the telltale signs of an aircraft (red and green wing lights, or any sort of flashing light), we realized it was a satellite. And it was bright; slightly brighter than Jupiter, which we could see to the southeast over San Francisco.
The only satellite that competes with Jupiter and Venus is the International Space Station. The next day I checked the satellite prediction/tracking website Heavens Above and confirmed that what we say was the ISS. If I had known it was going to be flying through the middle of my shot, I would have taken one long exposure, instead of a stack of shorter exposures (notice the breaks in the path of the satellite).
If you'd like to read about some of the best locations to photograph the Golden Gate Bridge, check out the Open Source Photo Guide for the GGB that I authored.