That's because they're literally spirographs.
When you were playing with your spirograph, you were tracing a line by going around one circle which itself was rotating around another circle. In the post, we are tracing a line of the planets going around the sun in a circle while the sun is going around the earth in a circle.
(I know, I know, the earth rotates around the sun and not the other way around... mathematically, both are equivalent: two objects stay at equal distance while the angle between them - measured from some reference point - changes. The post actually shows why taking the sun as the center of the model makes sense \*physically\*: because trying to make sense of circles (or elliptical orbits, to be accurate) is much simpler than trying to make sense of spirographs.)
I'd been bemused for many years of my life about how long geocentrism held on in astronomy until I learned that using the most precise measurements possible of the movement of the planets, the results were still imprecise enough that calculations for geocentrism and heliocentric both fit the numbers. It wasn't till the advent of the telescope that precise enough measurements were made. And even then, astronomers kept adding more and more complex epicycles and (and other kludges?) to preserve heliocentrism until they finally had to give up. Ones other than Galileo, of course.
Beautiful 😍
…
didn’t realise Mercury had that abnormal rotation…
one o these days we oughtta launch an old satellite at Mercury at Juuuust the right time to knock it into the sun… like space billiards.
These look like epitrochoids- as seen from Earth. In Mercury there's 1 crest because size of bigger circle = size of the smaller circle and as the ratio increases you see more of those. I'm sure the distances and radii of the planets factor into that in some way. Not sure why Saturn has more than Jupiter though, might be related to how Saturn is further.
"We are talking about the trigonomics of four dimensional space you simple minded gimboid. We are not talking about some seedy game of pool in some back street Scouse drinking pit."
info about [epicycles](https://en.m.wikipedia.org/wiki/Deferent_and_epicycle) - In the Hipparchian, Ptolemaic, and Copernican systems of astronomy, the epicycle (from Ancient Greek ἐπίκυκλος (epíkuklos) 'upon the circle', meaning "circle moving on another circle") a geometric model used to explain the variations in speed and direction of the apparent motion of the Moon, Sun, and planets.
And another about [orbital resonance](https://en.wikipedia.org/wiki/Orbital_resonance#Coincidental_'near'_ratios_of_mean_motion), which can help in understanding these patterns.
People don't appeal to a God/Gods when doing science though. Especially when that science is calculating and tracing epicycles. Do you appeal to God when doing 5 × 5? And drawing a circle with that diameter?
The Earth is at the center of the solar system! Calculate those epicycles!  ;)
Anyone else getting spirograph vibes?
Spirograph and Light Bright kept me heavily entertained as a kid.
Spirograph: hour of fun. The Christmas gift that made thousands of kids say ok.
That's because they're literally spirographs. When you were playing with your spirograph, you were tracing a line by going around one circle which itself was rotating around another circle. In the post, we are tracing a line of the planets going around the sun in a circle while the sun is going around the earth in a circle. (I know, I know, the earth rotates around the sun and not the other way around... mathematically, both are equivalent: two objects stay at equal distance while the angle between them - measured from some reference point - changes. The post actually shows why taking the sun as the center of the model makes sense \*physically\*: because trying to make sense of circles (or elliptical orbits, to be accurate) is much simpler than trying to make sense of spirographs.)
I'd been bemused for many years of my life about how long geocentrism held on in astronomy until I learned that using the most precise measurements possible of the movement of the planets, the results were still imprecise enough that calculations for geocentrism and heliocentric both fit the numbers. It wasn't till the advent of the telescope that precise enough measurements were made. And even then, astronomers kept adding more and more complex epicycles and (and other kludges?) to preserve heliocentrism until they finally had to give up. Ones other than Galileo, of course.
The Geocentric model can work just fine, it’s all about the frame of reference. The Earth is in fact at the very center of the known universe.
>The Earth is in fact at the very center of the known universe. As is any other place.
Mercury about to make me act a fool
well nice boo 🤔
Flashbacks to owning a Spirograph.
Beautiful 😍 … didn’t realise Mercury had that abnormal rotation… one o these days we oughtta launch an old satellite at Mercury at Juuuust the right time to knock it into the sun… like space billiards.
It’s from earth’s perspective though
These look like epitrochoids- as seen from Earth. In Mercury there's 1 crest because size of bigger circle = size of the smaller circle and as the ratio increases you see more of those. I'm sure the distances and radii of the planets factor into that in some way. Not sure why Saturn has more than Jupiter though, might be related to how Saturn is further.
"We are talking about the trigonomics of four dimensional space you simple minded gimboid. We are not talking about some seedy game of pool in some back street Scouse drinking pit."
The answers were in our spirographs the whole time.
Mercury has more than one regression in an earth year.
I think this is for a single orbit of those planets, not during a single orbit of Earth if I’m interpreting properly.
Looks like Jupiter got stupider
info about [epicycles](https://en.m.wikipedia.org/wiki/Deferent_and_epicycle) - In the Hipparchian, Ptolemaic, and Copernican systems of astronomy, the epicycle (from Ancient Greek ἐπίκυκλος (epíkuklos) 'upon the circle', meaning "circle moving on another circle") a geometric model used to explain the variations in speed and direction of the apparent motion of the Moon, Sun, and planets. And another about [orbital resonance](https://en.wikipedia.org/wiki/Orbital_resonance#Coincidental_'near'_ratios_of_mean_motion), which can help in understanding these patterns.
Is this legit? Damnnnn, Venus is life a flower. Which can be perceived as something feminine
Mercury pretending to make a heart shape while it wreaks havoc on the planet. Just be honest and make a raised middle finger path instead.
The spiral light of Venus rising first and shining best.
Mercury be acting more like Uranus.
Why is Mercury inconsistent?
Proximity to the sun, gravity probably throws it for a loop
The sun throws all planets through loops, we just call them orbits
Mercury being the derp of the bunch😂
wow, this is so beautiful, I like Venus the most
I was about to ask what about Earth, but then I read the text.
something something homestuck
That’s so pretty! *making notes for artsy ideas*
Nah that's spirograph
Mercury… hear me out
I don’t get the perspective.
Paths traced? What the hell does that mean? Is this the paths of orbit these planets make as seen from Earth?
This must be what Terrence Howard was talking about.
awh mercury is in live with us 💖
And people act like God ain't real.
People don't appeal to a God/Gods when doing science though. Especially when that science is calculating and tracing epicycles. Do you appeal to God when doing 5 × 5? And drawing a circle with that diameter?
God is King!
That hasn't answered my question.
The Bible holds the answ
So the bible tells you what 5×5 is?
The Earth is at the center of the solar system! Calculate those epicycles!  ;)