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Space

Spectacular spectrum reveals Sun's chemistry

By Anil Ananthaswamy

25 February 2009

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

This high-resolution masterpiece was created by a spectrometer affixed to the world’s largest solar telescope

(Image: N A Sharp, NOAO/NSO/Kitt Peak FTS/AURA/NSF)

This is what visible light from the sun looks like if you split it into its constituent colours. But playing with a prism at home will not give you this high-resolution masterpiece, which was created using a sophisticated spectrometer fixed to the world’s largest solar telescope at the Kitt Peak National Observatory in Tucson, Arizona. The spectrometer splits light from the sun into two beams and sends them towards two mirrors, which bounce the light back to…

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