Comet Hale-Bopp and aurora borealis,30 March 1997
Numéro d’image : 11883547
| Comet Hale-Bopp. Optical image of comet Hale-Bopp over silhouetted trees and the glow of the aurora borealis (Northern Lights). Both the gas and dust tails of the comet are seen. The gas or "ion" tail (blue) consists of ionized 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. A comet's tail always points away from the Sun. The luminous light of the aurora borealis is caused by charged particles from the Sun inter- acting with the Earth's upper atmosphere. Comet Hale-Bopp was discovered on 23 June 1995. Photographed on 30 March 1997 in Finland | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / PEKKA PARVIAINEN |
| Taille de l’image : | 5340 px × 3425 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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