THIS DAY IN SCIENCE: Children's Cells Living In Mothers' Brains in 2012

Select Page
Using Parallax: How Far is that Star?

Using Parallax: How Far is that Star?

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...
>
Website Feedback
close slider
X