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From: hertz778@gmail.com (rhertz)
Newsgroups: sci.physics.relativity
Subject: Re: Halley comet: The triumph of Newton mechanics and the catastrophic
 failure of relativity,
Date: Tue, 25 Feb 2025 21:16:36 +0000
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ChatGPT:

More comprehensive models of cometary motion, including Halley’s, often
use numerical simulations that incorporate both Newtonian mechanics and
general relativity. In such models:

The gravitational interactions between the comet and the Sun and planets
are computed with high precision.

Relativistic corrections are applied, especially for the positions of
objects at very close distances to the Sun, where gravitational effects
become stronger.
Non-gravitational forces (due to outgassing and mass loss) are also
included, but these are typically handled SEPARATELY from general
relativity.

These relativistic effects are considered secondary compared to the
larger-scale forces (e.g., planetary interactions and mass loss).
Numerical models used for predicting cometary orbits may include
relativistic corrections when precise long-term predictions are needed.


Applying general relativity to cometary orbits like Halley’s allows
high-precision calculations. General relativity isn't necessary for
everyday predictions but can be used in specialized cases where extreme
accuracy is needed.


Conclusion:
General relativity is not essential for modeling the general trajectory
of Halley’s Comet, but it has been applied in specific contexts to
refine the precision of orbital calculations. These include accounting
for relativistic precession and providing slight corrections to orbital
predictions, especially when measuring long-term effects or considering
close approaches to the Sun.

Most of the applied research has been focused on refining Newtonian
models and ensuring that the effects of the planets, mass loss, and
relativistic corrections are well integrated. However, the main
challenge in modeling Halley’s orbit is still the non-gravitational
forces due to sublimation, which
is the passage of solid state directly to gaseous state.

In short, while general relativity has been used in a supporting role
for accurate predictions, it’s not the primary tool for studying
Halley's Comet's trajectory. Newtonian mechanics and perturbation
analysis are the main tools employed today.

********************************************************************

MY COMMENT (based on Wiki data):


"Halley has probably been in its current orbit for 16,000–200,000 years,
although it is not possible to numerically integrate its orbit for more
than a few tens of apparitions, and close approaches before 837 AD can
only be verified from recorded observations.[53] The non-gravitational
effects can be crucial;[53] as Halley approaches the Sun, it expels jets
of sublimating gas from its surface, which knock it very slightly off
its orbital path. These orbital changes cause delays in its perihelion
passage of four days on average".


The ERROR in calculating the perihelion passage is about FOUR DAYS IN
AVERAGE.

Any claim that general relativity can provide a more accurate prediction
than Newtonian mechanics IS BEYOND STUPIDITY, and comments from AI bots
supporting the use of GR for greater accuracy than Newton's theory are
due to PROPAGANDA.

Nothing else than AI being biased to defend relativity at any cost.
beyond reason and numerical NEWTONIAN simulations.