A view from Juno

There is something wonderful in the view of Jupiter that is denied observers on Earth as its circle of illumination adds another facet to its orbital motion around our central star and the motion of its moons around the planet -

https://www.youtube.com/watch?v=kjfQCTat-8s

Then NASA goes and does this to our planet in creating a pivoting circle of illumination to suit celestial sphere notions for the seasons -

https://www.youtube.com/watch?v=LUW51lvIFjg

Is the fact that the Earth turns in two separate ways to the central Sun so abhorrent that it becomes impossible to graft in the orbital motion of the moon into the misuse of time lapse footage ?.

Fair dues to the organization for getting a satellite to Jupiter ,that is a wonderful technical achievement however this achievement is tempered by a reluctance to look back at our own planet from space and that is dismaying, even for someone who is as optimistic as I am.

On Wednesday, July 6, 2016 at 7:12:36 AM UTC+1, Gerald Kelleher wrote:

Then NASA goes and does this to our planet in creating a pivoting circle of illumination to suit celestial sphere notions for the seasons -

https://www.youtube.com/watch?v=LUW51lvIFjg

Nasa didn't create the pivoting circle of illumination, they just photographed it. Those are actual photos with North at the top, exactly what you'd expect from a satellite in equatorial orbit. You can see east Africa throughout.

I suppose you'd prefer them to pivot the camera to keep the the circle of illumination fixed, and have the North pole swinging around, because then it would look a bit like the precession diagram which you don't understand either, but like for some reason you are unable to explain.

In any sphere of existence, much less astronomy, it is highly damaging to distort perspectives to suit an ill-gotten conclusion. To use imaginary daily rotational terms like the Tropics of Capricorn/Cancer to describe orbital effects is tantamount to the fake imaging halfwits accuse NASA of except in this case it is an awful fact -

http://earthobservatory.nasa.gov/IOTD/view.php?id=52248

In contrast to that utter mess is the Hubble time lapse footage of seasons occurring due to two simultaneous rotations to the Sun happening in combination with special attention given to the surface rotation as a function of a planet's orbital motion through space and around the Sun -

https://www.youtube.com/watch?v=612gSZsplpE

Perhaps I am the only person with a sense of occasion in seeing Juno approach Jupiter from the point of view of its circle of illumination and as a way to work off the Earth's motions and that of our moon.

https://www.youtube.com/watch?v=kjfQCTat-8s

On Wednesday, July 6, 2016 at 12:12:53 PM UTC+1, Gerald Kelleher wrote:
In any sphere of existence, much less astronomy, it is highly damaging to distort perspectives to suit an ill-gotten conclusion. To use imaginary daily rotational terms like the Tropics of Capricorn/Cancer to describe orbital effects is tantamount to the fake imaging halfwits accuse NASA of except in this case it is an awful fact -

http://earthobservatory.nasa.gov/IOTD/view.php?id=52248

In contrast to that utter mess

Again, this is not a mess at all, these are actual photos of the Earth, and the description is correct.

The Tropics are no more imaginary than the equator or arctic and antarctic circles.

They say they included a tiny lego statue of Galileo on the mission as Galileo first spotted the moons of Jupiter as they make their circuits around the planet and the unique perspective seen from the approaching spacecraft and maybe some day it will be presented in high definition -

https://www.youtube.com/watch?v=kjfQCTat-8s

Galileo like everyone else was at sea when it came to inner planetary retrogrades and assigned their observed motions to a moving Earth but this has changed lately as the racetrack analogy developed in this forum takes center stage .

"Now what is said here of Jupiter is to be understood of Saturn and Mars also. In Saturn these retrogressions are somewhat more frequent than in Jupiter, because its motion is slower than Jupiter's, so that the Earth overtakes it in a shorter time. In Mars they are rarer, its motion being faster than that of Jupiter, so that the Earth spends more time in catching up with it. Next, as to Venus and Mercury, whose circles are included within that of the Earth, stoppings and retrograde motions appear in them also, due not to any motion that really exists in them, but to the annual motion of the Earth. This is acutely demonstrated by Copernicus . . ." Galileo

The inner planetary motions as they run their circuits around the Sun are a large scale version of Jupiter's satellites as they run their circuits around that planet. The missing piece was how to account for the Earth's orbital motion when judging the inner planets and this means adjusting the perspective of the motion of the Sun through the Zodiac to the line-of-sight motion of the stars behind the stationary central Sun -

https://www.youtube.com/watch?v=MdFrE7hWj0A

The Juno mission is an engineering triumph as all the other missions were and are however engineering achievements are not the same as astronomical ones. Urging people to take up the challenges is not the same thing as shoving things down their throat and somehow I do realize that more than a few people already know how the split perspectives work and have a sense of occasion when encountering new material.

On Wednesday, July 6, 2016 at 4:24:58 PM UTC+1, Gerald Kelleher wrote:
Galileo like everyone else was at sea when it came to inner planetary retrogrades and assigned their observed motions to a moving Earth

You mean the timing and shape of retrogrades are not due to the Earth's motion? What can the explanation possibly be?

The missing piece was how to account for the Earth's orbital motion

Fascinating!

"I had now decided beyond all question that there existed in the heavens three stars wandering about Jupiter as do Venus and Mercury about the sun, and this became plainer than daylight from observations on similar occasions which followed." Galileo

https://people.rit.edu/wlrgsh/Galileo.pdf

Galileo could not have seen Jupiter's circle of illumination as the satellites orbited the planet and that is what is so special about the time lapse from the spacecraft -

https://www.youtube.com/watch?v=kjfQCTat-8s

I am not competing against halfwits who don't belong in this conversation however modern imaging and graphics presents a different approach to observations which the original heliocentric astronomers hadn't use and they were connected to the geocentric framework where the Sun moves through the Zodiac instead of proof for the Earth's orbital motion alone which sets the Sun up as a central reference using the annual motion of the stars in what is effectively a line-of-sight observation -

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

If people genuinely appreciate the insight of Galileo they would also admit the shortcomings when it came to the perspectives which split the inner and outer planets seen from a moving Earth -

"Now what is said here of Jupiter is to be understood of Saturn and Mars also. In Saturn these retrogressions are somewhat more frequent than in Jupiter, because its motion is slower than Jupiter's, so that the Earth overtakes it in a shorter time. In Mars they are rarer, its motion being faster than that of Jupiter, so that the Earth spends more time in catching up with it. Next, as to Venus and Mercury, whose circles are included within that of the Earth, stoppings and retrograde motions appear in them also, due not to any motion that really exists in them, but to the annual motion of the Earth. This is acutely demonstrated by Copernicus . . ." Galileo

Seizing the opportunity to set this right by using observations and graphics properly gives a large amount of credibility to these space missions and the engineering feats behind them. I don't even mind the public celebrations which mark human attempt to put objects and humans in orbit however other achievements have gone on behind the scenes in the most hostile conditions but they are achievements nonetheless .

On Wednesday, July 6, 2016 at 5:55:19 PM UTC+1, Gerald Kelleher wrote:
modern imaging and graphics presents a different approach to observations which the original heliocentric astronomers hadn't use and they were connected to the geocentric framework where the Sun moves through the Zodiac instead of proof for the Earth's orbital motion alone which sets the Sun up as a central reference using the annual motion of the stars in what is effectively a line-of-sight observation

So your big insight which the original heliocentric astronomers never grasped is that the Sun is at the center, and the appearance of the Sun moving through the Zodiac is due to the Earth's motion around the Sun?

Copernicus would be astounded!

I look at the NASA take on Juno's approach to Jupiter and they have no need to defame Galileo nor the original heliocentric astronomers by propaganda that only Goebbels would admire.

http://www.cnet.com/videos/nasa-vide...ch-to-jupiter/

The heliocentric story began with a geocentric framework where the planets 'wandered' against the background stars while the Sun and moon cut a direct path through the same field of stars.

The solar system was organized on the length of time it took a planet to move through that field of stars and the geocentric astronomers put the Sun between the orbital period of Mars and Venus.

". . . the ancient hypotheses clearly fail to account for certain important matters. For example, they do not comprehend the causes of the numbers, extents and durations of the retrogradations and of their agreeing so well with the position and mean motion of the sun. Copernicus alone gives an explanation to those things that provoke astonishment among other astronomers, thus destroying the source of astonishment, which lies in the ignorance of the causes." Kepler 1596, Mysterium Cosmographicum

I have changed all this by separating retrogrades as open-ended loops with no Sun at the center for the outer planets while the inner planets display closed circuits with the Sun at the center. It is done by one very specific observation which replaces the motion of the Sun through the Zodiac with a line-of-sight observation which uses the annual motion of the stars providing proof for the Earth's orbital motion alone.

It would only appeal to men who value something beyond intelligence and into wisdom because the full story is so much more wonderful and these new images should delight the heart on this account. Not just the graceful motion of the satellites but the orientation of the giant planet to its parent star should awake something in hearts and minds. This is all good.

I have been looking at the so-called augmented reality aids which will make explaining the new insights so easy and exciting for students, the idea being that once they can make sense of the motions as they appear from the surface of a moving Earth then they can set the virtual explanations aside and they come back to them as they do exist.

I don't do commercial plugging however something in the line of Microsoft hololens seems roughly the tech that will work -

https://www.microsoft.com/microsoft-hololens/en-us

Identifying objects allied with a magnification exercise can only be called astronomy with the greatest courtesy and getting back to how astronomy was really practiced as a visual pursuit finds a new home with 21st century graphics,imaging and technology. The days of voodoo spouting experimental nonsense will not survive the new technology which opens up an astronomical vista that just didn't exist before.

Celestial sphere enthusiasts take a bow.