When studying visual binary stars, we use the formula
M=(4pi^2R^3)/(GT^2) where T is defined as the period of the "system", with the 2+ stars orbiting a centre point in space. What exactly is this period? What does it look like? How are the stars moving?
I've only ever encounted "single" objects orbiting!
Also, whats happening here when there is more than 2 stars?
A forum designed mainly for high school physics students in New South Wales, Australia.
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