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Message Subject Dr.Astros response to "2012 A-Z" pin!!
Poster Handle Kimpy2
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Dr. Astro, if you care to reply, what do you think of that video going around glp titles "2012 A-Z" ? If you watched it?
Quoting: Albanian 12582427


It's crap. Earth does NOT orbit Alcyone. Our sun does NOT orbit Alcyone. Our solar system does NOT orbit Alcyone. Let alone in 25,627 years. Nor do we orbit Sirius.

Let's look at the numbers for Alcyone just to show you how ridiculous this is. Alcyone is of course part of the Pleiades, so let's use the total mass of the Pleiades cluster to see if we're orbiting it. Alcyone has a parallax of about 8.09 milliarcseconds, which corresponds to a distance of about 402 light years.
[link to simbad.u-strasbg.fr]
It also has a proper motion of about 19.34 milliarcseconds in right ascension and -43.67 milliarcseconds in declination per year. Now at a distance of 402 light years, those 43.67 milliarcseconds/year in declination translate to 805,195,033 kilometers per year or about 25.515 km/second. Now the Pleiades cluster has a total mass of about 740 sun masses ( [link to arxiv.org] ), so at a distance of 400 light years, the escape velocity for the entire Pleiades cluster is about 0.227861 km/second (that velocity will not get you around the 2,500 light year circumference of the orbit in 25,627 years either; just look at it, a roughly circular orbit would have to be about a tenth the speed of light!). In other words, even just taking into account our proper motion in declination, to say nothing of our total motion relative to Alcyone including in right ascension and radial velocity, we're traveling over 100 times too fast to be orbiting the Pleiades! We are not orbiting the Pleiades, let alone Alcyone, not even close.

As for Sirius, it has a proper motion of 1.2 arcseconds/year in declination and .546 arcseconds per year in right ascension ( [link to simbad.u-strasbg.fr] ) (15 km/sec and 6.8 km/sec velocity relative to our solar system respectively). Since we're about 8.6 light years from the Sirius system, and since Sirius A and B have a combined mass of nearly 3 times the sun's mass, the escape velocity from the Sirius system at the distance of our sun is about 0.1 km/sec. In other words, our solar system is traveling many times too fast relative to Sirius to be able to orbit it or be in a trinary configuration with it.
 Quoting: Albanian 12582427


yoda Dr. Astro, it's rather you who are full of caca, you gave the wrong declination for Sirius. Plus you prolly don't embrace the Electric Universe. Astro-math alone does not convince me. One must rely heavily on observational evidence as well (like the declination of Sirius NOT CHANGING since the Great Pyramid's construction!) It seems you're a reductionist traveling way too fast to stop and smell the stars.
SNIP
The Sun's Astral Companion
A Model for the Sun-Sirius System
[link to www.viewzone.com]
By William Brown
A Companion to our Sun?

The vast majority of observable stars are binary or multiple star systems. In these systems, two or more stars share a common focus of revolution and are gravitationally bound to each other in defined orbits. This is such a common observation such that the gravitational interaction of multiple stars appears to be the "normal" mode of stellar system formation.
This is logical because stars are formed in nebulae that are "stellar nurseries" [right] where great conglomerates of light elements formed during the Big Bang while heavy elements were synthesized in the heart of giant, primordial stars, and were ejected upon their disruption. Special note should be made of the many complex organic compounds permeating such nebulae [1,2], because of the implications for cosmic biogenesis and panspermia -- theories which hold that life has an extrasolar origenesis.

The Spire [right]. This column of star forming material is 57 trillion miles long.

The close proximity of stars to each other upon formation clearly involves a high probability for gravitational binding, assuming that astral formations aren't directly driven by binary interactions (which could very well be the case). Intellectually this establishes the basis for a dual-star interaction within our Solar System. It is generally presumed that the Sun is a unique exception to this commonly observed phenomenon, however, observational evidence suggests that the Sun is moving in a defined orbit around a companion system of stars.

Evidence is plentiful for the support of a model involving the interaction of multiple stars in our solar system and will be presented in this article. Also, multiple flaws abound in the centuries-old models of heliocentricism that were formed before it was understood that the solar system moves through space.

Dark Star or Nemesis?

Is the idea of a solar companion to our Sun unprecedented? Not at all, in fact there have been numerous scientific publications examining the evidence for a "dark star", literally speaking, to which our Sun could be gravitationally bound in a definite orbit [3]. This alternate dark star is known as Nemesis, and its proposition comes primarily from observed perturbations of orbiting objects such as the planet-sized Kuiper belt object named Sedna [4].

The Pllars of Creation - A Hubble Telescope image of the Eagle Nebula within the constellation Serpens. The light of super-massive stars can be seen shining forth.

Walter Cruttenden of the Binary Star research institute has propounded that a solar companion need not necessarily be of the "dark star" variety. Given the paucity of empirical observations and measurements of the movement of many of the bright stars within our own local galactic sector, it is with some justification that visible stars be examined to see if any may share a common focal point with our own Solar System [5]. At the heart of the poly-solar system theory is a simplification of the mechanics of constellation precession (precession observable) with a more logical model, one that does not rely on a putative wobble of the Earth but instead explains the precession observable with the movement of the Solar System itself.

Precession
In astronomy, axial precession is a gravity-induced, slow and continuous change in the orientation of an astronomical body's rotational axis. In particular, it refers to the gradual shift in the orientation of Earth's axis of rotation, which, like a wobbling top, traces out a pair of cones joined at their apices in a cycle of approximately 26,000 years (called a Great or Platonic Year in astrology).

Earth's precession was historically called precession of the equinoxes because the equinoxes moved westward along the ecliptic relative to the fixed stars, opposite to the motion of the Sun along the ecliptic. This term is still used in non-technical discussions, that is, when detailed mathematics are absent. Historically, Hipparchus is credited with discovering precession of the equinoxes. The exact dates of his life are not known, but astronomical observations attributed to him by Ptolemy date from 147 BC to 127 BC.

The above video explains the Precession of Equinox and introduces some new and old theories.

Who is our Sun's twin?

Is there a candidate for binary revolution among the visible stars? Logically we could begin with the closest star to our own, which is Alpha Centauri. At a distance of 4.37 light years, it is the third brightest star and, as is common, it is itself a binary system.

Another star that shows evidence of being gravitationally bound within the system and is called Alpha Proxima. Alpha Proxima is 0.2 light years from Alpha Centauri AB, about 400 times the distance of Neptune's orbit from the Sun. This shows that a dual or poly star system does not have to necessarily be in close orbital interaction. However Alpha Centauri lies at a declination of -60°, which is well out of the plane of the Solar System, and as such, has a near circumpolar motion in the sky.

A more suitable candidate would be a star closer to the plane of the Solar System, or celestial equator. Sirius meets this criteria, at a declination of -17°. It is also the brightest star in the night sky, three times brighter than Alpha Centauri and twice as bright as the next brightest star Canopus. Sirius is also the 5th closest system of stars to our own [6]. More significant is the fact that The Sirius Research Group has been recording the position of Sirius for approximately 20 years now and has not recorded any measurable alteration in its location relative to the precession [7].

Imagine that you are holding hands with a friend, face to face. If you both began to spin around in a circle, your friend would appear to be stationary, while everything around them would appear to be spinning very rapidly. Your joined hands would be the focal point of the revolving motion. While the surrounding environment would not be spinning around, it would appear to be from you perspective.

This illustrates how the perception of both you and your friend can be very illusionary -- you see yourselves as relatively stationary while the background whirls around you. This is very similar to our situation with respect to observations of celestial motion between the Sun and its solar companions. Our observation of this phenomenon is more complex in that we must also factor in the orbital motion of the Earth and planets around the Sun.

Celestial bodies in our Solar System show harmonic resonance with the Sirius system. Pluto and Sedna are at an incline to the plane of the solar system of roughly 17°, the same as Sirius. Both have orbital periods of 250 years and 12,000 years, which are at 1:5 and 1:2 resonances with Sirius, respectively (12,000 years is roughly one half of the orbit of the Sun around Sirius, hence a 1:2 resonance).

Resonance is a criterion stipulated for any system of orbiting bodies, which is why planets and moons are often times tidally locked with their parent body, and is another reason why the hypothesis of a putative wobble is very unappealing. A wobble is indicative of dynamic instability, not harmonic resonance (think of a spinning top before it falls, it begins to wobble).

A Sirius Candidate

Sirius is a binary system. Sirius A is the highly visible star, but there is a companion known as Sirius B, first described in modern times by the Dogon tribe of Mali (Africa) and subsequently verified by the observational science of astronomers. The Dogon also described a third celestial body with characteristics of a neutron star. While a neutron wouldn't be visible in the same manner as Sirius B, the combined gravitational attraction of a neutron star, a white giant star and a white dwarf would certainly provide the gravitational force needed to keep the Sun bound at a distance of 8.6 light years. In fact, the presence of a neutron star is by no means necessary for the gravitational interaction of the Sun with Sirius.

Historic and mythological descriptions of Sirius provides further insight into the nature of the relationship between the Sun and Sirius. A shaft leading from the Queens chamber of the Great Pyramid of Egypt was -- and still is -- aligned precisely with Sirius. Given the high probability that it was constructed that way, and considering that the pyramids form a star map in and of themselves, it shows how many epochs Sirius has been in a stationary position relative to the movement of the other stars.

When European philosophers first hypothesized that the Earth revolves around the Sun it was a radical and revolutionary idea of that era. Nicholas Copernicus developed the model and scientific explanation by which the Earth revolved around the Sun, and proponents of the model expounded it after its posthumous publication in 1543. The process of overturning the geocentric model of the Solar System, where the stationary Earth was at the center of the Universe, was not an easy venture and came to be known as the Copernican Revolution. Like most ideas that challenge the existing paradigm, it was not well received by most philosophers of the day.
 
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