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 
Dr. Astro, it's rather you who are full of caca, you gave the wrong declination for Sirius.
Wrong.
Proper motions mas/yr [error ellipse]: -546.01 -1223.07
[
link to simbad.u-strasbg.fr]
-1223.07 mas/yr in declination = 1.2 arcseconds per year.
I'm guessing you thought I was giving the coordinates of Sirius. Look up what proper motion is before you accuse me of being full of shit. I know what the hell I'm talking about, you clearly don't, so you're the one who's full of it.
Plus you prolly don't embrace the Electric Universe. Astro-math alone does not convince me.
Quoting: idiotTranslation, you're a wilfully ignorant idiot who doesn't understand "astro-math" so you refuse to believe it and gladly latch onto any alternative bullshit you can find. Thanks for admitting that you're an irrational moran who openly admits he'll ignore proof.
One must rely heavily on observational evidence as well (like the declination of Sirius NOT CHANGING since the Great Pyramid's construction!)
Quoting: idiotBehold, "holy sirius."
Yes, Sirius DOES move, it DOES experience proper motion and it DOES precess along with all the other stars. Here are two images of Sirius taken 28 years apart.
I used the diffraction spikes to place a small black dot at the exact center of Sirius and you can clearly see how it moves in that period of time (it moved less than 1 arcminute, incidentally, still detectable and consistent with its proper motion, but NOT consistent with the claim that it doesn't precess like the other stars). Whoops, there goes the "declination of Sirius not changing since the great pyramid's construction." LOL!
It seems you're a reductionist traveling way too fast to stop and smell the stars.
Quoting: idiotIt seems you're a fucking idiot who blindly reposts shit that was already debunked by the very post you responded to.
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.
Oh right, you don't understand "astro-math" so you just ignore it. By all means, continue to wallow in your ignorance. And by the way, just for good measure, most stars in our galaxy are actually single:
[
link to www.cfa.harvard.edu (secure)]
Don't accuse me of being full of shit. I know what I'm talking about.
