This night exposure in the Colorado San Juan Mts. ran all night long for 6 hours and 45 minutes. The moon shows in the upper left hand corner and provided the illumination for the landscape. Stars appear as streaks in the pattern of a rainbow.
One may wonder how there could be enough light to record this at night but the math shows that this image is 1,537,500 times longer than the average 1/ 125 of a second daytime shot........
