PARIS: NASA has recently collected new images of the sun by combining x-ray observations made by several instruments to result in a composite image that now shows all of the sun’s active, flaring regions.
“We can see a few active regions on the Sun in this view,” Ianin Hannah, an astronomer at the University of Glasgow, said, regarding the image in a recent press release. “Our Sun is quietening down in its activity cycle, but still has a couple of years before it reaches a minimum.”
Hannah presented the image at the July 8 assembly of the National Astronomy Meeting, in Llandudno, Wales.
This composite image brings together images from NASA’s Nuclear Spectroscopic Telescope Array (the NuSTAR instrument) as well as images from the X-ray instrument on the Hinode spacecraft of Japan. The NuSTAR images reveal the sun’s high-energy X-rays (which, in the composite image is indicated in blue), and the Hinode shows the sun’s low-energy X-rays (indicated in green). In the image, the yellow and orange colors represent the ultraviolet rays collected by NASA’s Solar Dynamics Observatory.
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