Posted by Frances on Sunday, October 2, 2011 at 11:19pm.
Try some of the following links for help:
http://www.google.com/search?q=how+to+calculate+the+mass+of+a+planet+from+observations+of+a+satellite+in+orbit+around+that+planet&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
Sra
I read somewhere that you need to know the orbital period and radius of the planet is that correct?
You need the orbital period and the radius of the satellite's orbit (not the planet). That will let you calculate the planet's mass.
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