Finding absolute magnitude from parallax and apparent magnitude

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redbaldyhead
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Can anyone help me get my head around this one?
A star with a parallax angle of pi = 10 millisecs and has apparent magnitude of V= 10.2
How can I determine absolute magnitude:
I have the formula M=v -5logd -5 +A which can be ignored.
d=1/pi but I am always determining d which is less than that of the sun's distance!
Thanks Red
 
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10 m'' = .010" , [tex]d=\frac{1}{p''}[/tex], where d is the distance in parsecs. Solve for d. This should probably be in the homework section.
 
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