The plague and astronomy

ps200306 wrote: »

Wrong. Inasmuch as a physical law is the assertion that Nature follows certain regularities, you provided the quote yourself -- "But it is absolutely certain and exact that the ratio which exists ..." etc. Kepler's Laws appeared in Harmonices Mundi (1619) and Epitome Astronomiae Copernicanae (1621).

The statement of Kepler was cut short for brevity but then again I forget that contributors are willing to sacrifice their own lives for the late 17th century icon. The full statement demonstrates that Kepler's loose correlation between orbital periods and distance from the Sun equalises any variations in orbital geometries and not explains individual orbital motions -

"But it is absolutely certain and exact that the ratio which exists
between the periodic times of any two planets is precisely the ratio
of the 3/2th power of the mean distances, i.e., of the spheres
themselves; provided, however, that the arithmetic mean between both
diameters of the elliptic orbit be slightly less than the longer
diameter." Kepler

So here we are in the time of plague and people are acting as though they are stricken with an intellectual disease in order to protect a scheme that never worked and hinders people from appreciating 21st century astronomy.

People will need astronomy now, they can go outside and consider Venus swinging in presently between our slower moving planet and the central Sun that is out of sight. During this time, the real satisfying things become important and so long as the forum bouncer doesn't intervene, genuine people can appreciate what is in front of them.

So nobody wants to make use of contemporary time lapse and nobody wants t know the technical details of heliocentricity, geocentricity or even RA/Dec modeling. As far as I can see is a non working forum where the only contributions are whining apart from your own contributions. Nobody is required to read or respond but for those who do will learn something.

ps200306 wrote: »

Wrong. If we're going to split hairs then neither the Sun nor the Earth move through the constellations. That is merely the two-dimensional projection of one particular perspective or another. If we are not going to be so pernickety then the timing of the Sun going round the Earth and vice versa are the same.

The axiom for the Earth's orbital motion around the Sun is based on the observation that the Sun's complete an orbit of the constellations in the same period. This is how the original geocentric astronomers understood and inherited as a framework by the first heliocentric astronomers -

"Of all things visible, the highest is the heaven of the fixed stars. This, I see, is doubted by nobody. But the ancient philosophers wanted to arrange the planets in accordance with the duration of the revolutions. Their principle assumes that of objects moving equally fast, those farther away seem to travel more slowly, as is proved in Euclid’s Optics. The moon revolves in the shortest period of time because, in their opinion, it runs on the smallest circle as the nearest to the earth. The highest planet, on the other hand, is Saturn, which completes the biggest circuit in the longest time. Below it is Jupiter, followed by Mars.With regard to Venus and Mercury, however, differences of opinion are found. For, these planets do not pass through every elongation from the sun, as the other planets do. Hence Venus and Mercury are located above the sun by some authorities, like Plato’s Timaeus (38 D), but below the sun by others, like Ptolemy (Syntaxis, IX, 1) and many of the modems. Al-Bitruji places Venus above the sun, and Mercury below it." Copernicus, De Revolutionibus

The axiom that the Earth rotates once each day is based on the Sun's apparent motion from horizon (sunrise) to horizon (sunset) with noon as an anchor.

I know you are out of your depth but as your objections are strictly empirical and not astronomical hence the misplaced notion that the Earth around the Sun has an equivalent observation of the Sun around the Earth.

I will make it easy for you and everyone else. Kepler used the motion of Mars over 16 years to assign variations with each orbital pass of the Earth -

https://upload.wikimedia.org/wikipedia/commons/e/e9/Kepler_Mars_retrograde.jpg

"Copernicus, by attributing a single annual motion to the earth,entirely rids the planets of these extremely intricate coils,leading the individual planets into their respective orbits,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' you see looped towards the center, with one extra, making nine times, while at the same time the Earth repeats its circle sixteen times " Kepler Astronomia Nova 1609


The 17th century dummy thinks if you plonk the Sun at the centre then direct/retrogrades disappear hence his idiosyncratic absolute/relative space and motion -

"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


The coronavirus plague will pass but there is the Royal Society plague in the education system that needs attending to. Any person who wants to consider themselves an astronomer and actually promote astronomy in this era when people need it do not have to deal with the astrophysical crap of the 'clockwork solar system' and its 20th century variants. Those who live to support the late 17th century mathematicians are dead to astronomy and its principles which still exist behind the rubbish that obscures it. Learn from Rouse Ball if you can't understand the lessons from the first heliocentric astronomers and me -

"The demonstrations throughout the book [Principia] are geometrical, but to readers of ordinary ability are rendered unnecessarily difficult by the absence of illustrations and explanations, and by the fact that no clue is given to the method by which Newton arrived at his results. The reason why it was presented in a geometrical form appears to have been that the infinitesimal calculus was then unknown, and, had Newton used it to demonstrate results which were in themselves opposed to the prevalent philosophy of the time, the controversy as to the truth of his results would have been hampered by a dispute concerning the validity of the methods used in proving them. He therefore cast the whole reasoning into a geometrical shape" Rouse Ball 1908

None of you speak the language of geometry and that is why Rouse Ball and all the bluffers who show up to support Newton can't handle modern imaging, time lapse and so on.

Popoutman wrote: »

And that poster is back on ignore.
Those posts from them of what is effectively meaningless wandering-point word salad really has no place in this scientific-based forum. There's no ability being exhibited by the above poster to have a genuine *and rational* discussion on any topics they've been involved in, and their viewpoints are not changeable by receiving sane and reasons rebuttals. I'm bowing out of any more responses to this poster, as I'd be better served by beating my head against a nice padded desk than continue any attempts to have a rational discussion here with them.

My suggestions to the normal people who also end up trying and failing to get this poster to see any form of reality, should do similar and not react or post, as it only seems to encourage the digital diarrhea previously exhibited by the above poster over the past few months on this forum.

No doubt there will be another post from that poster without a concise point and missing the point completely below this post, based on previous performance.
I'm choosing to ignore them, for my own sanity. Life's too short to be dragged down to their level and for them to beat me with their experience at that level. I'd suggest that most people should do the same, and eventually the above poster will stop diluting this forum with the whackery previously shown, and we can get back to this forum's version of normality.

Go away as you lack integrity. It is far better to die of the coronavirus than live a life supporting a late 17th century cretin who created a smokescreen surrounding the great insights of the first heliocentric astronomers. It suffocates the great inspirational side of astronomy and how the original astronomers, despite having none of the benefits we have today could reason how how the Earth moves through space along with the other planets while the Sun is the common centre of our common motions -

https://apod.nasa.gov/apod/ap011220.html