Stars: Properties and Classification
Stars: Properties and Classification
Stars: Properties and Classification
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Binary <strong>Stars</strong>: use the Generalized Keplers Third Law<br />
Star A<br />
- Binary stars are in orbit around<br />
each other.<br />
- They orbit around their C.M.<br />
C.M.<br />
R b<br />
R a<br />
- Their orbital period depends on<br />
their separation <strong>and</strong> their masses.<br />
Star B<br />
Generalized Keplers Third Law<br />
(M a +M b ) P 2 = a 3<br />
Keplers Third Law<br />
G/4π 2 M sun P 2 = a 3<br />
a= (R a +R b )/2<br />
Big P = Small Masses<br />
Small P = Big Masses
Change language