What exactly is the detail of this eclipse of the Galactic plane? The orbital calculation says we eclipse this point every 28,600 years? Does anyone know the details?
Brent.

Hello. Welcome to BAUT.

I'm 01101001 and I'm here to help.

But hang on for a minute while I rustle up some links...

Edit: I'm back. I have a collection of links to 2012-related topics in BAUT Forum that probably include some that address your particular concern about 2012. (And, I'm pleased to announce the expansion of the list to include some links to some parent-sites Universe Today and Bad Astronomy Blog articles debunking aspects of some 2012 predictions. More are welcome any time.)

Sorry, answers to your specific inquiry about galactic-plane eclipsing might take a while to find in this list because there are so many aspects to 2012 predictions. Top of my head, it's not gonna happen, unless your definition of galactic-plane eclipsing is so mundane that it will happen not only in 2012, but in every year. But, details are in here somewhere:

1. 2003 no, 2012 si
2. 2012
3. End of Mayan Calendar
4. Pole shift / Planetary alignment 2012?
5. 2012 alignment question
6. about the Mayan 2012 item
7. 2012 Debunking?
8. Possible asteroid impact in 2012?
9. 2012 asteroid?
10. We don't have to worry about 2012!
11. More on 2012 from India Daily
12. 2012 Completion of conspiracy?
13. Here's what's REALLY going to happen in 2012...
14. crop circles, Planet X and 2012
15. Planet X, crop circles and 2012 cataclysma
16. According to the Mayans, what will happen on 23rd Dec. 2012?
17. More 2012 Nonsense
18. NEO 2012?
19. Dangerous NEO in 2012?
20. Christmas 2012
21. 2012 mayan calender end of world
22. Regarding the supposed polar shift/new ice age in 2012
23. New 2012 threat?
24. 2012 look at this thing on the sun
25. Russian Expert Predicts Global Cooling from 2012
26. Pole shift idea origins
27. Dec 20 2012
28. 2012 Stuff
29. Horizon Project-New End of World Scare?
30. Date: December 21st 2012
31. Earth passing thru Galactic center in 2012 - didn't that already happen?
32. 2012: What do you think well happen (if anything)
33. So what will we see in 2012?
34. Galactic Tsunami?
35. Plane of the ecliptic of the galaxy?
36. Earth's Magnetic Field & 2012
37. 2012?
38. Any truth to this?
39. How can the sun be aligned with Galactic centre?
40. the whole 2012 poles flip nonsense
41. Planet X Official Advertisement
42. What year are we in
43. Quick question about the sun
44. Galactic Alignment
45. Books of 2012! -
46. 2007 = 2012
47. Return of Planet X By Rand
48. Don Alejandro - Mayan Elder.
49. Toutatis 4179: 2012?
50. Galactic Alignment in 2012 ?
51. Solar Storms
52. A real prediction!
53. NIBURU - Brown Dwarf, The DESTROYER
54. 2012 Galactic Alignment
55. Not 2012 again! But I cant help it~
56. New evidence for 2012 TEOTWAWKI!!!
57. this may be a silly question but...
58. Just to know if this is true
59. Just Wondering...
60. Planet X/Nibiru, is it real?
61. Youv heard this a million times.
62. Nibaru or Planet X
63. Mayan calendar
64. 2012 Article?
65. can i say something please on planet x
66. Nibiru
67. The growing earth.... :P
68. Our Solar System's Eclipse of the Galactic Plane on Dec 21, 2012?

Universe Today: No Doomsday in 2012
Bad Astronomy Blog: 2012, the year nothing will happen
Universe Today: 2012: No Planet X

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What you should take away from reading some, or all of those links is that the closest alignment happened some time ago, in 1998 or 1999, so the 2012 date is astronomically insignificant.

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It so happens that, at the Sun's present location in the galaxy, the plane of the solar system aligns approximately with the galactic centre. I have a picture of that here, with the planetary orbits in blue, the galaxy spanning the image horizontally, the galactic centre in the middle of the view, and the Sun's orbital motion around the galaxy directed pretty much leftwards.
So, once a year, the Earth can get to position in its orbit in which the Sun lies approximately between the Earth and the galactic centre. That happens around the December equinox. It's been happening around the December equinox for years, and will continue to do so for years. The closest alignment was several years ago.
Since the equinoxes precess with a period of 25,800 years, that the period at which this situation repeats itself. So in 12,900 years, we'll be seeing the same approximate alignment happening around the June equinox.

Grant Hutchison

on the day before this "eclipse", i suggest that everyone go running thru the streets while flailing their arms in a crazy fashion and screaming about how it's the end of the world, so everyone might as well just give you all their money and possessions.

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