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This was just about to go live when a new idea involving the Sun cropped up, now added to the original. The source data is from NASA JPL as usual. From our 2015 de Vries post we saw that the 2503 year period, which the numbers were based on, consisted of 85 Saturn and 211 […]

This brief look at Jupiter-Uranus synodic patterns follows the style of the Saturn-Uranus model post, where details of the method are given. Here we’ll run through the relevant model details then compare with planetary data, as in the other post. It should be straightforward as it’s mostly based on just two Fibonacci numbers: 13 and […]

Let’s say first of all: readers who don’t want to see the fine details will be offered a shortcut to the main points instead. For this look at Saturn-Uranus conjunction patterns a model will be proposed, then the planetary data compared to it to see how good a match it is – or not. This […]

Using a simple formula we’re now able to see the link between Jupiter and Saturn orbits. As in the original giant planets update post the numbers are quite large but easily connected to the ‘Why Phi’ concept. Using the orbit period of each planet we derive the synodic period, i.e. the time taken for the […]

Why Phi: giant planets update

Posted: October 26, 2014 by oldbrew in Maths, solar system dynamics

The Why Phi series started with a discussion around ‘Relations between the Fibonacci Series and Solar System Orbits’ (link below) Now NASA has updated its planetary data as of 20th October 2014. With the revised numbers (see below for source) we have to re-calculate the orbital relationships of the giant planets. Amending the original numbers […]

This is the second post in a series attempting to unlock the door to the secret life of our solar system. In part one we presented some observations demonstrating a selection of the relationships between the motion of the planets, cyclic climatic and solar periods found in palaeo-proxy records, and ratios in the Fibonacci series, […]

Try to imagine Saturn and Uranus orbiting the Sun in 8 and 12 days respectively. Far-fetched? In our solar system, yes, but something very similar has been observed in an exoplanetary star system, as was recently discussed by scientist and blogger Hugh Osborn, one of the co-authors of a study of the surprising 2-planet system. […]

In nearly six years there are 247 b and 63 c orbits. Since 248:62 is 4:1, it can be seen why the observed ‘acceleration and deceleration’ of the planets might occur. – – – Astronomers using the SuperWASP-North telescope on La Palma in the Canary Islands, Spain, and the SOPHIE spectrograph at the Observatoire de […]

Quoting from the abstract of the study in Nature Astronomy: ‘The planets orbit close to a mean-motion resonant chain, with periods (3.36 days, 5.66 days and 11.38 days, respectively) near ratios of small integers (5:3 and 2:1).’ One of the astronomers said: “For TOI-270, these planets line up like pearls on a string. That’s a […]

This post on the ice giants Uranus and Neptune follows on from this one: Why Phi? – Jupiter, Saturn and the inner solar system The main focus will be on Uranus. A planetary conjunction of three bodies (e.g. two planets and the Sun, in line) is also known as a syzygy. Here’s the notation for […]

Interesting recent research from Norway on solar-planetary theory introduced by one of the authors, Harald Yndestad. H/T Tallbloke The planets Jupiter, Saturn, Uranus and Neptune affect irradiation variability from the sun Published: 20.aug. 2016 New Astronomy By Harald Yndestad a), og Jan-Erik Solheim b) a) Norwegian University of Science and Technology Aalesund, Aalesund 6025, Norway […]

What exactly goes on in terms of interactions between giant planets and their host star? The researchers admit the need ‘to disentangle some of the very poorly understood physics behind tidal dissipation’, as Phys.org reports. More observations needed. A giant “hot Jupiter” exoplanet has recently been detected by an international team of astronomers led by […]

As the report says: ‘Kepler-223’s two innermost planets are in a 4:3 resonance. The second and third are in a 3:2 resonance. And the third and fourth are in a 4:3 resonance.’ They are ‘far more massive than Earth’. Interesting to say the least. The four planets of the Kepler-223 star system seem to have […]

From New Scientist: Earth’s comfortable temperatures may be thanks to Saturn’s good behaviour. If the ringed giant’s orbit had been slightly different, Earth’s orbit could have been wildly elongated, like that of a long-period comet. Our solar system is a tidy sort of place: planetary orbits here tend to be circular and lie in the […]

From Nature.com, a new paper which looks at how dry atmosphere’s of some exoplanets could cast doubt on long cherished notions about planet formation. Current mainstream thinking is that big planets form a long way out and migrate inwards. Perhaps the opposite may be the case, and ‘hot jupiters’ form near the parent star and […]

‘An exoplanet, or extrasolar planet, is a planet outside the Solar System’ – Wikipedia. At least 175 multiple planetary systems have been found as of 25 November 2013. Stuart Graham investigates. Exoplanets are a mixed bunch. Some are 10 times the size of Jupiter, others seem more like moons and may orbit their star in […]

The first part of this post found a statistical relation between the planetary period of rotation [in days] and the diameter [in kilometres] for the Gas Giants of the Solar System. However, describing this statistical relationship in more detail is problematical because of our limited understanding of the Gas Giants. There are various observations, theories, […]

The headline was NASA’s joke about both the size and the short orbit periods (all less than two days) of the three planets in the Kepler-42 system. The discovery of this system dates back to 2012, but there don’t seem to be any numbers on resonant periods, so we’ll supply some now. Wikipedia says: ‘Kepler-42, […]

Could evidence from a specific binary asteroid pair upset existing planetary theories? ‘The Jupiter trojans, commonly called Trojan asteroids or just Trojans, are a large group of asteroids that share the planet Jupiter’s orbit around the Sun.’ – Wikipedia. There are over a million of these, inhabiting two oval-shaped zones based around what are known […]

This was ‘the first radio detection and the first measurement of the magnetic field of a possible planetary mass object beyond our Solar System.’ It’s even bigger than Jupiter. Plenty of puzzles for scientists to investigate. Astronomers have used the VLA to detect a possible planetary-mass object with a surprisingly powerful magnetic field some 20 […]