what is the mass of the sun
Just google it.
I think it is roughly 2000000000000000000000000000000 kg
1.989 × 10^30 kg not that I have ever weighed it. That is a more serious question. How do we know the true mass of an object without weighing it?
With Newtons law of Universal Gravitation!
http://imagine.gsfc.nasa.gov/features/yba/cyg-X1-mass/mass-of-sun.html
