Find the mass of the our galaxy

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im doing a problem were i find the mass of the our galaxy and i found the mass. What the problem is saying is to use the mass found to estimate how many stars are in our galaxy?
 
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richman614 said:
im doing a problem were i find the mass of the our galaxy and i found the mass. What the problem is saying is to use the mass found to estimate how many stars are in our galaxy?

Maybe you should look up the average mass of a star? I'm assuming the mass of the associated planets is nearly negligible in comparison.
 
Or you could look up relative proportions of star sizes in our galaxy and do a weighted average.

Or the simple way would be to just use the mass of the sun: you would have to justify this though.