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Some of the most common mistakes/difficulties



 
 
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  #1  
Old August 7th 12, 06:42 AM posted to sci.astro.amateur
oriel36[_2_]
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Posts: 8,478
Default Some of the most common mistakes/difficulties

The perspective that the Earth precesses 360 degrees to the central
Sun as a component of its orbital motion thereby obviating the need
for axial precession as it is currently understood is not only
supported by graphics but also observational evidence of another
planet,in this case Uranus.

It is a 100% certainty that the Earth's polar coordinates turn in a
circle to the central Sun as representative of all locations on Earth
hence the graphic of Earth matches the observations of Uranus as it
moves along its orbital circuit -

http://en.wikipedia.org/wiki/File:Earth_precession.svg

http://www.daviddarling.info/images/...gs_changes.jpg

In effectively looking at the interaction of daily and orbital motions
locally it becomes fairly easy to assign cause with effect such as why
there is a polar day/night cycle as the polar coordinates turn towards
and away from the Sun or why a planet's climate is defined by the
degree of axial inclination where 0 inclination reflects an equatorial
climate and 90 degrees a polar climate,the latter view negates the
older 'no tilt/no seasons' and gets rid of precession as an axial
trait and puts it into a roughly 26 000 year orbital feature.

To achieve a local view where most researchers can operate comfortably
without constantly referring the Earth motions to external
sources,indeed they can work that way without having to know the
technical ins and outs of external cyclical references,it is crucial
to follow the development of timekeeping systems in tandem with the
specific references which comprise the connections between the raw
astronomical data and the human formatting of that data into a
convenient state.

It was nice to witness an engineering feat and the community
celebration of that achievement yesterday yet sometimes individual
astronomical works do not allow for these things as the transition
from an old to a new point of view is often awkward and
contentious.The ability of men to explore our planet centuries ago
using a watch for navigation purposes is now extended into the modern
era where spacecraft venture into the celestial arena and land on
other planets and these incredible engineering features tell you
almost nothing about astronomy other than the great cycles supply
information which humans process to the best of their ability and turn
into practical applications.



  #2  
Old August 7th 12, 07:44 PM posted to sci.astro.amateur
Quadibloc
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Posts: 7,018
Default Some of the most common mistakes/difficulties

On Aug 6, 11:42*pm, oriel36 wrote:
The perspective that the Earth precesses 360 degrees to the central
Sun *as a component of its orbital motion


Yes, we know that. It does not obviate the need to name and recognize
the much slower effect of the precession of the equinoxes, if that's
what you were saying.

The difference between us and you is on which side of the Earth's
rotation that effect is.

This annual 360 degree change in the Earth's relation to the central
Sun is what causes the difference between the 24 hour length of the
mean solar day and the 23 hour, 56 minute, and 4 second time interval
between successive returns of a star to the meridian. We're also in
perfect agreement on that fact.

What is in dispute, of course, is my claim (and the claim of the whole
of modern-day astronomy, for that matter) that since the solar day is
subject to the Equation of Time, while stellar circumpolar motion is
not, but is essentially uniform in terms of clock time, it must be the
latter which corresponds to the rotation of the Earth, since only a
simple motion and not a compound motion is admissible as a freely-
moving body's intrinsic rotation.

On top of that, as I show on my web site at

http://www.quadibloc.com/science/eot.htm

the equation of time corresponds precisely to and reflects the
characteristics of the Earth's orbit, its elliptical nature and its
inclination to the Earth's rotational equator.

You claim we've got it all wrong and backwards. Without giving a good
reason.

And you're actually _surprised_ that when you do something like that,
the reaction is occasionally less than polite!

John Savard
  #3  
Old August 7th 12, 09:21 PM posted to sci.astro.amateur
Androcles[_80_]
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Posts: 65
Default Some of the most common mistakes/difficulties



"Quadibloc" wrote in message
...

On Aug 6, 11:42 pm, oriel36 wrote:
The perspective that the Earth precesses 360 degrees to the central
Sun as a component of its orbital motion


Yes, we know that.


===========================
Oh good, now you can shut the **** up since you agree with Kelleher, you
snipping ****wit.



 




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