Half Dome by Moonlight, photo by Harold Davis. View this image larger.
This is a roughly twenty minute exposure during most of which Half Dome was lit by light from the setting moon. I took the photo from Glacier Point, and the foreground landscape beneath Half Dome is deep in moon shadow.
Later, after the moon set, the light grew more uniform and the exposures longer, as in the thirty-minute duration When Stars Rush In.
[Nikon D300, 12-24mm Zoom lens at 17mm (about 25.5mm in 35mm terms), 1,204 seconds at f/8 and ISO 100, tripod mounted.]