Re: Starmapping software


OG wrote:
"oriel36" <geraldkelleher@xxxxxxxxx> wrote in message
news:1160588715.525453.220230@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

OG wrote:

So you accept that you were wrong when you said that no external
reference
is required.

And since you need to know the time of year to determine what amount of
correction is needed to apply as the Equation of Time you were doubly
wrong.
You need the Sun to get a more or less wrong answer, and you need a
further
exteral reference (the ecliptic) to get the figre right.


It is wonderful to have the original articles which promote the
correlation between clocks , axial rotation and how to determine your
location on the planet based on 4 minutes for each degree of
rotation.The journals, preceding the error created by Flamsteed in
1676, explain how the Equation of Time correction is applied and the
handy ways to find local noon in order to maintain the transfer of
clock time to longitude position using the principle of independent
axial rotation.

Yes, clever isn't it. But irrelevant the point under discussion. The
Equation of Time is required.


That is the real joy,the pre-Copernican correction governs the creation
of the 24 hour day and allows one 24 hour day to elapse into another 24
hour day.The heliocentric astronomers simply grafted it into the
principle that the Earth's axial rotation generates the daily cycle and
that the rotation is constant regardless of what causes the variations
in the total length of the day.

No external reference is therefore required to justify the correlation
between clocks and axial rotation at 4 minutes per each degree of
rotation making 24 hours/360 degrees in total.

I know,you want to get out of this thread and you are indeed free to go
without any prejudice.The postive thing in all this is that somebody
,with a little effort,can present to a wider audience how clocks keep
in sync with axial rotation insofar as I am obviously not the person to
do it.The tricky part is to acknowledge that the human devised
principle which created the 24 hour day is seperate from the principle
of axial rotation hence the two step process with one foot in
pre-copernican astronomy and the other as the heliocentric adaption.It
really does belong to nobody or at least belongs to human ingenuity
without any one particular person responsible for the whole system.

Humanity will thank the person for the gift of how clocks correlate
with axial rotation,not just the pragmatic side but the intricate
thuinking which links everything together.This is what has been missing
from astronomy and the sooner it comes back the better.






There are multitudes of people just like you who justify the return of
a star to your location in 23 hours 56 minutes 04 seconds using the
axial and orbital motion of the Earth,so many that it seems an almost
impossible task to alter the view back to the original setup -

http://hypertextbook.com/facts/1999/JennyChen.shtml

Any chance of a link that isn't broken?


This is a bare principle devised by pre-Copernican
astronomers who had no practical idea that the Earth had axial
rotation and orbital motion.

Do you really wish to justify axial rotation by way of celestial sphere
geometry and the return of a star to your location ?.


What do you mean by 'justlfy' in that sentence? (be brief and stick to
the
point)

I did ask for you to be brief and to the point. What do you mean by
'Justify' ?

The original principles for the transfer of the pre-Copernican equable
24 hour day

Do tell us how many days actually have 24 hours between successive meridiem
passages of the Sun?

How many?

.

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