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using tonic water to detect UV light

frisbee that changes color in UV light

April 13, 2012 -- Astrophotographer Alan Friedman captured this gorgeous portrait of the sun on April 7 from his home in Buffalo, NY, using a backyard solar telescope and a new Grasshopper CCD camera by Point Grey Research. Viewed in a wavelength emitted by hydrogen alpha (Ha) the sun's surface details become visible, showing the complex texture of our home star's true face.

  • Heather Povolish

    maybe we can borrow a solar telescope from the astronomy society or go to one of their solar observing events. I think the kids would love it!