It's a "Tell All" presentation by Scott Tracy, member Greater Hartford Astronomical Society and retired science educator. Scott reveals all in this hands-on science demo featuring stars in the deep, dark night sky.
Have you ever wondered how we know what stars are made of, given that most of the stars in the night sky are hundreds or thousands of light years away? Learn how astronomers have determined that stars are predominantly made of hydrogen and helium gasses. It's true! View several glowing gasses through a simple hand held diffraction grating and see with your own eyes the specific properties of each gas. Other star characteristics - their temperatures and their motions - are revealed when we examine the information carried to earth by star light.
Registration highly recommended for adults, teens and youth age 8 and older; space is limited.