sci.astro.amateur
[Top] [All Lists]

## Re: Starmapping software

 Subject: Re: Starmapping software "oriel36" 2 Oct 2006 13:19:39 -0700 sci.astro.amateur
 ```OG wrote: > "oriel36" wrote in message > news:1159809785.851218.96500@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx > > > > > > Let me show you what you believe through Flamsteed's justification of > > the return of a star to a meridian - > > > > http://www.nmm.ac.uk/server/show/nav.00500300l005001000 > > > > In your mind a shadow returns to noon in 24 hours exactly > > What does 'a shadow returning to noon' mean? . Noon is a time, A shadow is a > moving line on the ground. You have confused yourself once again. > > > In your mind a shadow returns to noon in 24 hours exactly > > Does the NMM definition of the 24 hour solar day include the word 'exactly' > in reference to the passage of the sun across the sky? No, I didn't think so > either. > > > In your mind a shadow returns to noon in 24 hours exactly in order to > > justify the reurn of a star in 23 hours 56 minutes 04 seconds. > > The sidereal day is exact. There is no need to posit an exactness to the > solar day to determine the exactness of the sidereal day. > > > I can no longer compete with such rubbish as the NMM explanation above > > when the actual principles which correlate clocks with axial rotation > > through the noon Equation of Time correction at precisely 4 minutes for > > each degree of rotation are so gorgeous that I have trouble imagining > > why anyone would intentionally destroy it > > It does not 'destroy' it to point out that it is dependent on a fudge > factor, a correction. You know what a "correction" is? it is something > needed to make something else correct! > > > > > The two step process which correlates axial rotation with the clocks > > in 24 hours/360 degrees precisely is now open for anyone who cares to > > explain it as a shared astronomical heritage which is gorgeous and > > pragmatic. > > Yes (apart from not being exact) it is indeed gorgeous; but it is > emphatically not exclusive of other more exact and useful means of > expressing the relationship between heavens and earth. The correlation between axial rotation and the clock value is and always will be 4 minutes for each degree of rotation precisely making 24 hours/360 degrees in total.There is no burden attached to appreciating the two step process which refers the pre-Copernican Eqiuation of Time principles to its pragmatic heliocentric adaption to axial rotation,it simply is for people who have genuine intellectual and intuitive intelligence and I am prepared to leave it at that. How long you can keep the belief that the Earth's axial and orbital motions can be justified using the return of a star in 23 hours 56 minutes 04 sec is not for me to say.It is a huge mistake that is not easy to conceal but then again I have come around to being positive and can confidently say that people will really enjoy the two step process of the Equation of Time system to care that 17th century celestial sphere cataloguers got it wrong. So,join the rest of humanity and celebrate that the pace of a hand of clock you see on the wall is keeping in sync with the great cycle of axial rotation at 15 degrees per hour precisely, the way the system was developed makes it is a geometric certainty and one of the greatest human inventive achievements of all. ```
 Current Thread Re: Starmapping software, OG Re: Starmapping software, oriel36 Re: Starmapping software, John Carruthers Re: Starmapping software, oriel36 Re: Starmapping software, OG Re: Starmapping software, oriel36 <= Re: Starmapping software, OG Re: Starmapping software, oriel36 Re: Starmapping software, sandrarsmith Re: Starmapping software, OG Re: Starmapping software, oriel36 Re: Starmapping software, OG Re: Starmapping software, oriel36 Re: Starmapping software, oriel36