Just some queries.

If Planet X was approaching Earth where would it be now?

If it is three years away, how do you calculate it's speed towards us? Is it approaching at 1000 mile per hour, per second? What is the figure and how can it be calculated?

Some say it is visible or about to become visible. If this is the case, how large would Planet X be to be seen on the borderline of visibility if it were, say, beyond or below the orbit of Pluto?

Without answering these and scores of other similar (and probably better) questions, all the claims that Planet X is on a collision course are nonsensical.

Howdy Toelex, I'll endeavor to answer this. Emphasis on 'endeavor'

This planet x/nibiru supposedly has an orbital period of 3600 years.

There are 3 laws of orbital motion, which a man called Johannes Kepler worked out in the early 1600's. These laws accurately describe any object orbiting the sun, be it a dust grain, a space craft, or a gas giant.

The important one here is as follows:

The square of a planet's orbital period is proportional to the cube of it's semimajor axis (the imaginary line between its closest and farthest positions from the sun.) So given that we know the orbital period of nibiru, we can work out its semimajor axis, and from that we can derive a pretty good estimate of its current velocity and distance from the sun.

Alas, my maths is stuck firmly in lamens terms. Perhaps someone here (no, not you s!) would be able to fill in the math. Needless to say, with only 3 years to go - nibiru would be well inside the solarsystem by now, much closer to saturn's orbit than pluto, and if as large as people think, visible to us all.

And, of course, its mass is well, massive! Could such a massive object occupy this extremely eccentric orbit? No way, and if it did our solar system would not be the stable one in which we live. If this planet existed it would have passed through here over a million times since the formation of the planets. I highly doubt we'd be here to worry about it in the first place!

Sorry I can't give you actual figures, but I hope this helps you in the right direction. Though if it helps, if nibiru were as far out as pluto now, and due here in 3 years, it would be traveling much too fast to be orbiting our sun.

And now...bring on the doomdayer's. Sigh.
Edit; You'd also have to delve into the laws concerning the gravitational interactions between two massive objects as well. Beyond me im afraid but long estaplished in science thanks to Newton.

http://www.badastronomy.com/bad/misc/planetx/orbitmath.html

Hey again. This is worth a look. It's from the the planet x debacle of 2003, and explains some of the the orbital math. It's the only thing I've ever found as astronomers (understandably) have better things to do than debunk hypothetical planets every few years. lol. Hope it helps. Check out the rest of the site too, it's a good read.

Thanks for the reply dd. It is a good one - even though I am up to scratch on Kepler et al and the laws of orbital motion etc. Many thanks for the link also. It is a very good website.

I was hoping a Nibiru believer would give me the answer. But I may have been hoping for a bit too much. It seems they misunderstand the word "research".

To me research is examining all the evidence both for and against an argument. From the posts I have read here, it seems research to Nibiru believers is exclusively focused on evidence that proves their theories. They write exceptionally few words about counter theories. Consequently their arguments are extremely weak.

So I ask them to prove me wrong in the above assumptions.

Please tell me where you (believers) know Nibiru is. And please don't tell me about the Virgo pictures or the "cover-up". That will just turn me away with nausea. And no numerological constructs, please, since every number I've researched can be used for all manner of theories both scientific and social. Just go to wikipedia and you can construct any theory based on numbers till your heart is content. Try number 7 for instance and you can relate it to the Mayan calendar - as you can with virtually every single digit I have seen.