Frank J. Lucatelli wrote:
> The top 26 list of solar system objects by their mass:
> Compiled by Eric Schreur of the Kalamazoo Valley Museum
> ...

Hi Frank

I recommend the Horizons site at JPL. http://ssd.jpl.nasa.gov/?horizons
Some of the details are here for planets
http://ssd.jpl.nasa.gov/?planet_phys_par
and here for satellites http://ssd.jpl.nasa.gov/?sat_phys_par
for asteroids etc, start at http://ssd.jpl.nasa.gov/?sb_elem

It is quite amazing how accurately the masses of most bodies are now
known as
a result of fly-bys mostly, but also accurate ranging of bodies. For
example the time
for light to travel 1 AU is 499.004783806 (± 0.00000001) s which means
the AU
is now known to an accuracy of 3 m!

regards
Ray