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Using Parallax: How Far is that Star?

by msander | Jun 8, 2017 | Gr 9-10 Science

Introduction Since the distances to the stars cannot be measured directly, astronomers use a variety of techniques including triangulation and parallax, comparison of absolute and apparent magnitude, and Cepheid variables. Triangulation is an indirect method of...

How do you measure the distance to a star?

by msander | Dec 12, 2014 | Gr 9-10 Science, Gr. 11-12 Physics

How do you measure the distance to something so incredibly far away light a star? As you’ll see in this video from Scientific American, the math involved is actually quite simple and relies on a property called parallax. Click here to have a look....