Re: precession of mercury

On Sun, 28 Dec 2008 06:11:59 -0800 (PST), Jerry
<Cephalobus_alienus@xxxxxxxxxxx> wrote:

On Dec 28, 4:55 am, hw@..(Dr. Henri Wilson) wrote:

continued after accidental posting


By measurement of the relative orientation of the target with
respect to angularly close, distant reference stars.

if the
telescope is placed in an ecliptic plane obit and does not rotate, then
everything in the field of view will be approximately the same

Keyword here is "approximately".

It will be displaced in an elliptical path, the major axis being 2AU and the
minor being 2AU.sin(a)

Oh, boy... Whatever got you to dream up this one?



Stellar aberration manifests itself as an ANGULAR displacement,
not a DISTANCE displacement. You can't claim the aberration
ellipse to be 2AU by 2AU.sin(a).

I'm talking about the ellipse due to parallax. The above distances are at the
star itself. Just divide by the star distance to get the angle. Remember I am
discussing what happens if the telescope is perfectly steady and does not spin
around once per day plus once per year.

Aberration should affect everything in the viewing field equally...assuming it
all arrives at c wrt earth. ...so relative star movments should be mainly due
to parallax. If light speed is NOT c, then the movements are complicated and
Hipparcos figures are wrong.


the size of which depends on either aberration or
parallax...or both. It might be difficult or impossible to separate the two
even with a 90 deg phase difference.

What are you babbling about?

Didn't you know that the displacement due to aberration is 90 out of phase with
that due to parallax? I didn't think you did...

You must be one who tries to teach your grandmother how to suck
eggs. Or in this case, one who tries to teach me what I taught
YOU.

Well I had to teach you how and why a ring gyro works.


What other factors?

What is observed is the Willusion.
The true relative positions of stars in the viewing area is not what they
appear to be..
Parallax and aberration displacements are out of phase. If correcting for the
former is based on constant light speed, then assessed parallax angles will be
wrong.

In conventional parallax measurements, correcting for aberration
simply means seeing to it that the background stars match up.
Light speed considerations don't enter into matching up the
background.

Uh! No this is where an error could arise.
If it is assumed that aberration is the same for all objects...when in fact it
is NOT, then relative star movements will be due to a combination of factors.

The same applies to secular aberration. If star positions and movements
are based on constant ligth speed to Earth, any calculations based on those
factors are likely to be wrong.

Any inconstancies in light speed will manifest themselves in
total chaos.

Since total chaos is not observed, BaTh is disproven.

In reality, total Willusory data is observed....and since astronomers assume it
all to be real, their subsequent interpretations must naturally amount to total
chaos.


Thermal cycling. Every time Hipparcos went into shadow, the
solar panels would buckle, and the effect was a noticeable glitch
in the data which needed to be modeled. YOUR proposed orbit
would result in daily eclipses, whose effect would need to be
modeled.

Hipparcos experienced daily eclipses adn seemed to function OK.

The effect of the eclipses had to be carefully studied and
factored out.

Yes.


That's right. It uses relative displacements of the stars in the field. But the
actual orientation of the telescope must be accuratly known at all times.

For relative measurements, why do you need absolute orientation?

So that the distance of at least one star in the field can be calculated. The
relative movements of the other stars then indicates their distances relative
to the known one.

What you need are reference stars with an effective distance of
"infinity", i.e. parallax effectively zero to the limits of
measurement.

Yes.



It is not a matter of presumption. It is a matter of MEASUREMENT.

BaTh predicts differential aberration for objects with varying
radial velocities towards or away from Earth. Differential
aberration is not observed, therefore BaTh is disproven.

BaTh says all light moving in a particular direction TENDS TOWARDS the same
speed.

Weaseling out of a fundamental problem with BaTh by postulating
"unification" again.

The concept of speed equalization is not at all unscientific. It happens
regularly in fluids.

BaTh is alive and well....in fact, in the absence of an aether, it MUST BE
correct.

In your dreams.

All speeds MUST BE FRAME DEPENDENT BY DEFINITION.

Jerry



Henri Wilson. ASTC,BSc,DSc(T)

www.users.bigpond.com/hewn/index.htm.

......
.

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