Encke's comet. Optical telescope views of the movement of Encke's comet (in crosshairs) against the background stars. Encke's comet (2P/Encke) has the shortest orbital period of any known comet,orbiting the Sun in just 3.3 years. A comet is a chunk of ices and dust that orbits the Sun in an elliptical orbit. As it nears the Sun,the heat causes some of the ice to boil off into space,creating a cloud of gas (coma) around the comet. A long tail of gas and dust particles is blown away from the comet by the pressure of sunlight. These images were taken at 10:33 (left) and 10:53 (right) on the morning of 26th October 2003,when Encke was near Earth | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Sanford, John |
Taille de l’image : | 2756 px × 1191 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |