Spectral Classification of Stars
In this spectral composition of stars instructional activity, students use data collected by a spectroscope to compare the stellar spectra to a standard for 5 stars. Students compare the spectral lines to the temperatures of the stars.
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Great Minds: Henrietta Leavitt and the Human Computers
For most people, it would seem impossible to make breakthroughs in astronomy when you aren't allowed to use a telescope, but Henrietta Leavitt did just that. She discovered a formula for determining the distance to stars that are...
4 mins 9th - 12th Science