The International Space Station ventured into the Summer Triangle on the evening of July 18, 2008, around 9:50 pm EDT. Per Heavens-Above, it reached a peak magnitude of -2.5 (about the same brightness as Jupiter). Here are several images captured by Joe Stieber with a Canon 40D digital SLR and a Sigma 30 mm f/1.4 lens. Each frame of the sequence was exposed for 8 seconds at f/2.0, ISO 200, on a fixed tripod. Note the aircraft gliding through the upper-left corner of the third frame. Click the images for larger versions (about 750 KB each). Here's a simple video of the sequence (63 KB); scroll down for a chart of the path.

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Path Chart (moving from Ophiuchus on the right through Hercules then into Vulpecula)