Time-lapse of the night sky, collected from frames with exposures over seconds instead of the usual hundredths during day. Some clips like STL357, 384, 388, 380, 386, 396, 401, 543, 550 are moonlit. Clips with yellow-red tinted clouds are near city lights. Green clouds are Aurora. There are similar but not identical clips. Clip STL358, 525 is a lunar corona.

Composites in this collection: 1

Clips that fade from day to night in this collection: 3 (STL531, 351,363,367,602) In other collections: 1

From night to day: 2 (STL543, 367)

Clips featuring New York City or San Francisco: 9 Other Cities: 4

‘Old school’ Night time-lapse clips also available: 8

Long exposure allows the ‘true’ color of stars to come through in select clips. A few clips belonging here are day-to-nights and night to day. Some clips have streaks of light in the sky- these are aircraft. Slower moving dots of light may be satellites or planets. Aurora Borealis (Northern Lights) clips from 3:2 camera frames can be custom cropped for a unique take. In a few clips, there seems to be an incidental interaction in some of the upper level clouds and the way some of the lights behave. Perhaps the upper level air movements that form these clouds interact with the charged particles in some way as they descend. The light ‘clouds’ enter the atmosphere from far above any oxygenated elevations, twisted by the planet’s magnetic field. In the green curtains, it is believed that nitrogen atoms collide with oxygen atoms.

“Auroras are the result of disturbances in the magnetosphere caused by solar wind. These disturbances are sometimes strong enough to alter the trajectories of charged particles in both solar wind and magnetospheric plasma. These particles, mainly electrons and protonsprecipitate into the upper atmosphere (thermosphere/exosphere). The resulting ionization and excitation of atmospheric constituents emit light of varying color and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of acceleration imparted to the precipitating particles. Precipitating protons generally produce optical emissions as incident hydrogen atoms after gaining electrons from the atmosphere. Proton auroras are usually observed at lower latitudes.” wikipedia

The almost incomprehensible beauty to behold such occurrences in person. Even after the lights are gone, the northern tundra takes on a residual ‘wildness’, an out of this world experience to even be able to drive around and about afterward in the frozen white land, wolves howling in the distance in between hours of dark, stunning silence and stillness.

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Aurora Borealis AKA Northern Lights

Storms, lightning and city lights (long exposure)

Night landscapes, partially moonlit

Starry Night Skies, Galaxy and Comet

Moons: coronae, closeup

Day to night, and night to day

City Skylines, bridges, ships, planes, cars

Old school nights (these are pre-2009 that are discounted)