"Henri Wilson" HW@.... wrote in message
...
On Fri, 16 Mar 2007 16:59:26 -0000, "George Dishman"
wrote:
"Henri Wilson" HW@.... wrote in message
. ..

... I doubt if the published one is particularly accurate.

_You_ calculate the accuracy by statistical techniques,
that's what get you the error bars. You can also estimate
systematics but factors like mis-calibration should apply
equally regardless of orbital phase.

Then those curves will almost certainly be failures too, you
cannot have a stable configuration with a third object except
under _very_ limited conditions (e.g. figure of eight or the
very disparate separations like the Sirius system).

George, does Jupiter have moons and orbit the sun?
Does the Earth have a moon George and orbit the sun?

OK, I should have also said "very disparate masses". There is
an upper limit of a mass ratio of ~24:1 for the Lagrange point
stability.

http://en.wikipedia.org/wiki/Lagrangian_point#Stability


I don't think you have fully realised the complexity of this whole issue
George.

I don't think you realise the complexity of the effect of
speed unification on VDoppler ;-)

I don't think you realise the constraints Keplerian orbits
place on you Henry.

George, there are probably 10 billion stars in our galaxy, most with
companions
and orbiting planets.
Do you really think we know every possible configuration just by
investigating
our own solar system?

No, I think we can eliminate unstable configurations by
applying Newton's Laws (relativistic effects are small).

However my program IS strictly limited to Keplerian orbits. I introduced
the
phase variation to investigate Lagrange points....and found evidence that
objects DO exist at the 60 degree one.

What mass ratio?

George