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“Our sun”. Runner up: Solar Limb Prominence and Sunspot by Eric Toops (USA) A striking image of a searing solar limb prominence and sunspot on the surface of our star, taken during the spring of 2016. Using Lunt H-alpha filters in a custom-made telescope the photographer was able to bring out the details of the solar activity using high magnification. Several photos were stacked to stabilize the image and the “seeing conditions” (the blurriness of the Earth’s atmosphere). Hoschton, Georgia, USA, 19 April 2016 Home-made telescope, Point Grey GS3-U3-60S6M camera. (Photo by Eric Toops/Insight Astronomy Photographer of the Year 2017)
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