Re: An astronomer's view of mechanics

oriel36 wrote:
There is no precedence for creating a fictional or hypothetical
observer on the Sun to account for apparent retorgrades -

" For to the earth planetary motions appear sometimes direct,
sometimes stationary, nay, and sometimes retrograde. But from the sun
they are always seen direct," Newton

If heliocentric astronomy simplifies the Solar System, by eliminating
the loops, by having each planet orbit the Sun, where better to see
this simplicity from than from the point of view of the Sun?

Once recognised that we see heliocentric orbital motion directly from
a moving Earth in an orbit between Venus and Mars it is intellectually
impossiible, approaching the level of insanity, to ever believe the
Sun around the Earth is a valid conception. -

"PHÆNOMENON IV.
That the fixed stars being at rest, the periodic times of the five
primary planets, and (whether of the sun about the earth, or) of the
earth about the sun, are in the sesquiplicate proportion of their mean
distances from the sun." Newton

The apparent year of the Sun around the Earth takes the same time as
the true year of the Earth around the Sun - Newton in no way denied
the heliocentric theory of Copernicus. It was his work that completed
the dream of Kepler, it was his work that proved Copernicus right and
Ptolemy and Brahe wrong.

I have walked you through the entire setup where Newton misinterprets
the data arising from the diagram on page 86 by believing if you place
the Sun at the center,the retrograde loops disappear -

http://mitpress.mit.edu/journals/pdf/POSC_13_1_74_0.pdf

There is the horror of your absolute/relative space,the idosyncratic
vandalism of a genuine Keplerian insight which uses orbital
comparisons between the Earth and Mars -

"Copernicus, by attributing a single annual motion to the earth,
entirely rids the planets of these extremely intricate coils [spiris],
leading the individual planets into their respective orbits
[orbitas],quite bare and very nearly circular. In the period of time
shown in the diagram, Mars traverses one and the same orbit as many
times as the 'garlands' [corollas] you see looped towards the
centre,with one extra, making nine times, while at the same time the
Earth repeats its circle sixteen times " Kepler

Placing the Sun at the center - and acknowledging that the Earth moves
around the Sun - is exactly what makes the retrogade loops disappear.
Because the retrogade loops are still seen in the apparent motions of
the planets from the Earth. To see the Earth move, and Mars more
slowly, and Venus more quickly, even if we do not place our vantage
point on the Sun, our vantage point must move with the Sun and not the
Earth.

These astrological traitors here know now there is no precedence
whatsoever for an idiosyncratic approach to and resolution of
retrogrades by Newton and let them be cursed for it.Building concepts
by introducing a zodiacal framework into heliocentric reasoning is the
complete antithesis of astronomy,its methods and its insights
extending to all facets of civilisation.Any society which allows its
own achievements to be destroyed for worthless conceptual junk is
hardly civilised but savage.

That's pretty strong stuff! And yet all I see is that following
Flamsteed and Newton is merely to take Copernicus and Kepler, and make
them plain and clear, and not detract or contradict them at all.

John Savard

.

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