Three types of binary stars.
Three types of binary stars.
Three types of binary stars.
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Let’s look at Kepler’s Law<br />
• (M 1 + M 2 )P 2 = (4π 2 /G)a 3<br />
• So we have the relative masses<br />
• We have the period.<br />
• We just need a 3 .<br />
• But v orbital = 2πa/P or a = v orbital *P/2π<br />
• So how do we find v orbital ?
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