Caption: Composite clip showing how light pollution obscures the winter stars of the Northern Hemisphere. As the camera tilts up, it is revealed how bright the night sky actually is. The clip is a composite of three images: the horizon view was taken over a city with a ten second exposure time, the middle view was taken in the country with 180s exposure, and the zenith view was taken from the Roque de los Muchachos Observatory of La Palma, Canary Islands, with a 600s exposure. The dramatic effect of light pollution is clearly seen: in the city sky, the lights hide many of the stars, and even the brightest star in the sky, Sirius (just left of centre) is faint. From the country, far more stars are visible, and the prominent constellation Orion and the Milky Way above it are seen. From the mountains, the sky is perfectly dark and clear, and the Milky Way is prominent, running through the constellations Auriga and Perseus. Images taken from Germany, looking south.

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Keywords: astronomical, astronomy, astrophotography, auriga, beautiful, beauty, bright, built up, canary islands, capella, cities, city lights, combined, composite, constellation, constellations, dark, darkness, environment, europe, european, gemini, hidden, horizon, human impact, invisible, light, light pollution, looking south, looking up, milky way, nature, night, northern, northern hemisphere, observatory, orion, perseus, populated, sirius, skies, sky, space, star, star gazing, stargazing, starry, stars, taurus, tilt, tilting up, urban, viewing, visible, winter, wonder

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Winter stars and light pollution

K004/5288 Rights Managed

Downloadable master

Duration: 00:00:10

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 655.2M


Capture format: Digital Rostrum

Frame size: 4724x4961

Codec: Photo - JPEG

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