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Coming to know our own solar system



 
 
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  #1  
Old February 23rd 17, 04:09 PM posted to sci.astro.amateur
Gerald Kelleher
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Default Coming to know our own solar system

The last vestiges of the old geocentric framework were not removed when Copernicus partly resolved the observed motions of the other planets by indicating an orbitally moving Earth using relative speeds between a faster moving Earth and the slower moving other planets as they fall temporarily behind in view as the closer Jupiter and the further and slower moving Saturn are seen to do in actual time lapse footage -

https://apod.nasa.gov/apod/image/011...2000_tezel.gif

It is somewhat dismaying, at least so far,that the easy to understand resolution for the inner planets has not made it in wider circulation in the general population or,more importantly, within the education system. The resolution is regulated by the phases of the inner planets as they move faster than the Earth and display the characteristic orientation to the central and stationary Sun with size increases, transits and all the other traits particular the the two inner planets -

https://upload.wikimedia.org/wikiped...Venus2.svg.png

The major issue in putting this correct perspective seen from a slower moving Earth in good standing is how to extract the Earth's slower motion in order to isolate the orbital motion of Mercury and Venus.

With a mismatch between the calendar based RA/Dec framework and the Lat/Long system insofar as the latter is the only means to build on timekeeping and daily rotation, the proof of the Earth's orbital motion around the Sun is suffocated in the need to link a rotating celestial sphere to daily rotation -

https://www.youtube.com/watch?v=BYy0EQBnqHI


The graceful transition from an evening appearance (left of the Sun) to a dawn appearance (right of the Sun) never becomes established even if it is spectacular in its own right . The only graphics I have are partial or from an astrology website to the great shame of all here -

https://www.youtube.com/watch?v=eeQwYrfmvoQ


No doubt that there are parts of this which would seem complicated or intricate to those who are unfamiliar with how to divide the wandering nature of the planets of our own solar system seen from a moving Earth but there is really nothing that should concern those who simply wish to enjoy the perspectives. The guys building on RA/Dec are a different matter as this timekeeping feature is fraught with many complications and intricacies notwithstanding that few could venture into that perspective without getting totally lost .

The world may indeed be mesmerized by exoplanets and other solar systems yet they may yet fond their own system is the most interesting.




  #2  
Old March 2nd 17, 07:29 PM posted to sci.astro.amateur
Gerald Kelleher
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Posts: 1,551
Default Coming to know our own solar system

In the pre-heliocentric framework the motion of the Sun was separated from the motion of the planets as they were seen to moving through the constellations and marked by Copernicus -

"Moreover, we see the other five planets also retrograde at times, and
stationary at either end [of the regression]. And whereas the sun
always advances along its own direct path, they wander in various
ways, straying sometimes to the south and sometimes to the north; that
is why they are called "planets" [wanderers]. Copernicus

The next main argument in geocentricity was how long it took the Sun and the other planets to complete a circuit of the constellations hence the Sun's period was 365 days and was therefore placed between the orbit of the outer and longer circuit of Mars and the inner and faster circuit of Venus.

By accounting for the wandering motions of the planets by way of the orbital motion of the Earth, Copernicus replaced a moving Sun with a central stationary Sun hence a 'wandering analemma Sun' is an aberration and simply late 17th century disruptive fiction.

I am back again in SoCal and probably the Disney animators would serve me better than the guys at JPL for explaining the whole thing with time lapse, graphics and animation would be truly the most enjoyable experience in creating a narrative all can use and appreciate, at least those who can be inspired and inspiring.
 




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