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originally posted by: purplemer
a reply to: St Udio
How can you be in his camp he did not know what caused it. Some evidence to counter would be useful.
Issac Newton did not come up with a suitable theory as to what caused the wobble. The present theory constanlty neeeds updating as it cannot predict the the variance of change.
he Lunisolor Precession theory was originally developed before there was any formal knowledge of binary stars or their motions, and before there was any recognition that the solar system might be moving. While this theory is a good first attempt at explaining the observed phenomenon (within a static solar system), it relies on certain untested assumptions concerning the composition and stability of the earth’s core and the moon’s solidity, and has had to be modified a number of times over the years to get the calculation to fit the ever changing observable.
Most astronomers do not pay attention to precession theory and consider these changes to be minor tweaks but they are actually telltale signs of the problems with current theory.
binaryresearchinstitute.com...
It is of important note here that we are talking about a cycle. The 24/26 orbit of Sirius explains the resason the earth wobbles in a cycle and also explains why the wobble is now speeding up.
Happy days.
Precession varies because of the influences of other planets. Jupiter and Venus in particular. The fact that both the Moon's orbit and Earth's are not circular is also a factor.
There is no reason the relatively constant mass of the Sun and Moon torquing the Earth should produce such figures.
I did. Sirius is too distant from Sol for them to be in orbit.
Please comment and let me know what you think it wrong with this theory.
BTW, did you see Sirius directly overhead today? At what time?
Precession varies because of the influences of other planets. Jupiter and Venus in particular. The fact that both the Moon's orbit and Earth's are not circular is also a factor.
It explains how orbits work.
Orbital mechanics does not explain a lot of things in the universe that does not mean they do not occur.
No. It has nothing to do with "time zone calibration." It has to do with your latitude and the Earth's rotation. There is only one general location and one time of day where Sirius will appear directly overhead on January 1st. And that time of day is in full daylight. No where on the planet will you see Sirius directly overhead on January 1st. And never will it "align" with Earth and the Sun.
If you had read my post earlier i explained this is due to the time zone calibration
Because it is changing it's position in the sky very slowly due to the combination of proper motion and precession.
Comparing Yukteswar’s and Newcomb’s predictions to the actual we find the dynamic SS model to be 41 times more accurate than the lunisolar precession model over the last 100 years.
Its proper motion is close to the apparent movement which precession provides, however, it does move. With telescopes this can be determined, without them, not so much.
No this star moves counter to precision and is holding its postition.
Prove that it's more accurate. In any case, a geocentric model can chart the movement of the stars and planets too, that does not mean it's a correct model. I'll take physics over a Swami, thank you.
What is wrong with a more accurate model?
Prove that it's more accurate. In any case, a geocentric model can chart the movement of the stars and planets too, that does not mean it's a correct model. I'll take physics over a Swami, thank you.
Reference Frames Under the current lunisolar theory of precession it is assumed that the earth goes around the sun 359 degree 59 minutes and 10 arc seconds in a Tropical year, the period from like equinox to like equinox, which is equal to 365.2422 rotations of the earth. This is true if you measure the position of the equinox relative to the fixed stars “outside” the solar system but it is not true if you measure the movement of the equinox relative to the sun or moon or other objects “within” the solar system, where the lunar data shows us that the earth goes around the sun a complete 360 degrees in a tropical year. Unfortunately, neither NASA VLBI nor any other official agency measures the earth’s orientation relative to nearby objects, so the paradox goes unnoticed.
Angular Momentum
The most widely accepted explanation for how the solar system formed is the Nebular Hypothesis. In this theory, the whole Solar System starts as a large cloud of gas that contracts under self-gravity. Conservation of angular momentum requires that a rotating disk form with a large concentration at the center (the proto-Sun). The centifugal force balances the gravitational forces and the disk coagulates into planets. Most people accept this theory, but there is one big unresolved problem – the angular momentum should be proportional to mass (as every physics student knows) but it’s not in our solar system.
Sheer edge
In April 2001, Discover Magazine reported that scientists from University of Michigan and University of Arizona found our solar system has a sheer edge meaning matter such as asteroids, ice and other objects of all sizes appears to abruptly end. A single sun system should have a very wide dispersal of matter getting smaller and smaller for billions of miles beyond the Kuiper Belt. To find that all matter seems to end just beyond this Kuiper Belt was unexpected. Among their conclusions, the reasearchers theorized that one possible cause of the sheer edge could be the gravitational influence of some as yet undetected large mass planet, that passed within close proximity to our system at some point in the past.
Distribution of Comets
Another fact expected in a single sun system is that comets should come from all directions more or less randomly. But historical comet pattern data shows comet paths tend to be non-random. Fully 1/3 of 82 long cycle comets come from a narrow belt.
binary Star Prevalence
There are many common misconceptions about binary star systems, one of the most common myths is that binary star systems are the cosmic oddity and that single star systems are the most prevalent, when, in fact, the opposite is true. 50 years ago binary stars were considered a rarity. Now, most of the stars in our galaxy are known to be paired with a companion or multiple partners.
Ties With Milankovitch Cycles
The Milankovitch Cycles are the results of studying past global climate changes over millions of years. One of the causes in climate change is precession of the equinoxes, which seems to have a period of 22,000 to 23,000 years, over millions of years.