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Saturn's aurora offer stunning double show

Saturn's aurora offer stunning double show
Title : Saturn's aurora offer stunning double show
Description : An enormous and grand ringed planet, Saturn is certainly one of the most intriguing bodies orbiting the Sun. This unique Hubble image from early 2009 features Saturn with the rings edge-on and both poles in view, offering a stunning double view of its fluttering aurora. Created by the interaction of the solar wind with the planet's magnetic field, Saturn's aurora are analogous to the more familiar northern and southern light on Earth. At the time when Hubble snapped this picture, Saturn was approaching its equinox so both poles were equally illuminated by the Sun's rays.

At first glance the light show of Saturn's aurora appears symmetric at the two poles. However, analyzing the new data in greater detail, astronomers have discovered some subtle differences between the northern and southern aurora, which reveal important information about Saturn's magnetic field. The northern auroral oval is slightly smaller and more intense than the southern one, implying that Saturn’s magnetic field is not equally distributed across the planet; it is slightly uneven and stronger in the north than the south.

See Related Article: http://www.sflorg.com/spacenews/sn021110_01.html

See Related Video: https://www.sflorg.com/observatories/hubble_multimedia/flvhubble_38



Date : Feb. 11, 2010
Credit : NASA, ESA and Jonathan Nichols (University of Leicester)
Source : ESA
File Type : JPG
File Size : 4.38MB


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