Originally posted by chetan How to find out the mass of Mercury & Venus
Google gives the answeer direct. Type in Venus mass and you get the answer:
mass of Venus = 4.86900 × 10^24 kilograms
Google is VERY powerful and has many functions that you may be aware of... try it!
I meant to say 'may NOT of heard of..'
It converts units too... type in 'kilogram to pounds' (without the quotes and it gives you the conversion factor...
I think chetan meant, "How do we find the masses of Venus and Mercury empirically?" They don't have moons of course so you cant use that method. My guess is that maybe we use artificial satellites to measure their masses. Honestly, I don't know though.
Yes, the orbits of space probes give us the best determination of their masses. (If Mercury and Venus had moons, we could use those, but they don't.)