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31.07.2011 02:31 -
Astronomy Picture of the Day
Автор: elahikari
Категория: Политика
Прочетен: 468 Коментари: 0 Гласове:
Последна промяна: 31.07.2011 02:31
Прочетен: 468 Коментари: 0 Гласове:
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Последна промяна: 31.07.2011 02:31
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
Explanation: A quest to find planet Earth"s darkest night skies led to this intriguing panorama. In projection, the mosaic view sandwiches the horizons visible in all-sky images taken from the northern hemisphere"s Canary Island of La Palma (top) and the south"s high Atacama Desert between the two hemispheres of the Milky Way Galaxy. The photographers" choice of locations offered locally dark skies enjoyed by La Palma"s Roque de los MuchachosObservatory and Paranal Observatory in Chile. But it also allowed the directions to the Milky Way"s north and south galactic poles to be placed near the local zenith. That constrained the faint, diffuse glow of the plane of the Milky Way to the mountainous horizons. As a result, an even fainter S-shaped band of light, sunlight scattered by dust along the solar system"secliptic plane, can be completely traced through both northern and southern hemisphere night skies.
2011 July
Explanation: A quest to find planet Earth"s darkest night skies led to this intriguing panorama. In projection, the mosaic view sandwiches the horizons visible in all-sky images taken from the northern hemisphere"s Canary Island of La Palma (top) and the south"s high Atacama Desert between the two hemispheres of the Milky Way Galaxy. The photographers" choice of locations offered locally dark skies enjoyed by La Palma"s Roque de los MuchachosObservatory and Paranal Observatory in Chile. But it also allowed the directions to the Milky Way"s north and south galactic poles to be placed near the local zenith. That constrained the faint, diffuse glow of the plane of the Milky Way to the mountainous horizons. As a result, an even fainter S-shaped band of light, sunlight scattered by dust along the solar system"secliptic plane, can be completely traced through both northern and southern hemisphere night skies.
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