DaveH
Striker
Err what, do you expect it to turn off for tea?It does raise that question but it also raises the question of how a supposed gas giant can offer what's shown, exactly all of the time.
I've no idea what you mean about spin and say exactly as people see it. What do you expect it to do? As for colour, take two small glasses of water and put a couple of drops of milk in one and a couple of drops of blackcurrant squash in the other and watch what happens to the colour. You have something 100% see through and add something that is over 90% water itself into it and it changes colour.It also still offers the conundrum of hydrogen and helium which apparently makes up just about all of the so-called gas giant, showing colour, and of course why it should spin and stay exactly as people see it.
Spin is a natural and expected consequence. If you consider the theory that the solar system was a cloud of dust and gas that got pulled together and gradually other bits got pulled into planets by gravity, then you have had constant forces acting in all directions on the forming planetary bodies. With nothing to dampen any movement then it is more natural that something would spin rather than not. Think of it like a mobile or other decoration hanging on a thin string. It only takes a slight movement of the air for them to start spinning. Now imagine it formed by a spinning disc and has constantly had things smack into it, and all the gravitational forces of everything else around as the solar system formed. Spin is the most natural consequence.
GravityAnd so-called moons spinning around a gas giant. Why and how?
So how does the ever changing image of Jupiter and the 'dance' of it's moons happen? Are you saying there is something akin to an internal video slide showing an ever changing image and light shines through to show what we call Jupiter?So, back to my answer.
What's seen in the sky is what's going on around the internal of Earth which comes right back to what's known as a planetarium projection only on a bigger scale and using central energy (sun) as the projector.
Single points of lights to make a star by shining through a crystal is a bit of a stretch but shine a torch through a crystal and you can get something vaguely similar. Planets, distant galaxies and nebula, then you need an image on a slide like in a real projector. Are you seriously suggesting that is what happens?
Then you have to consider why this story is in the news. Jupiter is big and bright at the minute. It is measurably bigger and brighter than it has been at other times and is increasing in brightness. If the standard model is true then that is exactly what you would expect when you can draw a straight line going sun->earth->Jupiter. The two orbits reach their closest point. It is literally the same as walking up to something and seeing it get bigger. As the earth orbits faster, it is going to move further away from Jupiter and we would both expect it to get smaller and dimmer. We would also expect it to be lower in the sky and further to the west compared to the same time of evening as we observe it now. That is exactly what happens. Exactly.
A little side note is that we are catching up to Mars which is also in a slower orbit so as Jupiter seems to move further to the west (or sets earlier), Mars should become more central in the southern sky, it should become bigger and brighter while becoming visible due south.
You can see the planets orbits very nicely by changing the dates at:
Eyes on the Solar System - NASA/JPL
Explore the 3D world of the Solar System. Learn about past and future missions.
eyes.nasa.gov
Now try the same at:
Stellarium Web Online Star Map
Stellarium Web is a planetarium running in your web browser. It shows a realistic star map, just like what you see with the naked eye, binoculars or a telescope.
stellarium-web.org
It is all predicted by basic maths.
Now why on earth would this magic crystal video slide change where Jupiter and Mars appear night after night? Why would they get bigger and brighter then dimmer? And what ever fabulous explanation you come up with, why would everything behave exactly as it would if they were planets as depicted in that first link? Is that not a startling coincidence. This isn't just roughly close, it is correct to insane levels of precision.
The answer of course is that planets are reality, crystal projector domes are not.
Believe what?
That it's a gas giant with its own moons?
I believe there's something up there. I believe there are many things up there but they're naturally projected, as in so-called planets and stars.
As for what we're told they are, as in, planets and stars in a space vacuum, I don't believe a word of it for obvious reasons.
Predict what?
I'm not arguing against something being there. I'm arguing as to what it really is.
I don't deny projections.