Comet Hale-Bopp. View of the silhouette of a man watching comet Hale-Bopp. Hale-Bopp was one of the brightest comets of the 20th century. Its gas or "ion" tail (blue) consists of ionised glowing gas blown away from the comet head by the solar wind. The dust tail (white) consists of grains of dust pushed away from the comet head by the radiation of sunlight. Comets have a nucleus of ice and dust. As they approach the Sun their surface evaporates,releasing a tail millions of kilometres long. Photographed on 5th April 1997 in Utah,USA | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Chumack, John |
Bildgröße: | 4984 px × 3569 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
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