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Panasonic Lumix DMC-ZS-100 on a tripod
8 sec exposure, f/4.6.
Cropping and overall digital contrast enhancement in Preview on a Mac.
Drove up at 4 am from Palo Alto to Skyline Blvd above Silicon Valley (elevation ~2200 ft) to hunt for the comet. Easily identified in the clear dawn sky. The foreground is the southern part of San Francisco Bay, the bright lights are the Googleplex in Mountain View, CA.