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I don't understand this. Where does the rotation begin and who chose this location? You said ancient civilizations marked when we would complete this rotation, and does that happen on December 21, 2012? Could you explain that image of the galaxy a little more as well as the calenders used by ancient civilizations, because I am lost.
230 million years is the amount of time it takes our solar system to complete one rotation around the galaxy, now depending on our spot in this rotation, some ancient civilization started a calendar to mark when we will complete another rotation and that brings us to the 2012 prediction.
You don't even know if what you're posting is true, but you make a thread bashing a professor who is right about what he said? Or are you saying you don't know if what he's saying is true?
[color=limegreen]I do not know if this is true or not as I tend to keep an open mind about most things, but to just act as if the only thing we do is line up the same way every year to me is very misleading coming from such a esteemed and Columbia University educated astrophysicist.
The only thing about the location is where it ends, which is the galactic alignment in question. I am sorry but I assume everyone on this site knows about the Mayan calender. Some of your questions are already answered here if you even paid the smallest attention to the post, of course I am talking about December 21,2012. In the galaxy image, our sun is highlighted by the little yellow dot labeled SOL and we are located on the Orion spur where it also happens we rotation on that axis as well.
I don't understand this. Where does the rotation begin and who chose this location? You said ancient civilizations marked when we would complete this rotation, and does that happen on December 21, 2012? Could you explain that image of the galaxy a little more as well as the calenders used by ancient civilizations, because I am lost.
The twitter status that you highlighted mentions the galactic allignment, and you bash him by posting a thread about how often we rotate the galaxy? I'm confused as to what relevance his status has to what you're saying.
What I do not know is if the Mayan prediction is true but I do know you can not have galactic alignment without galactic rotation the two go hand in hand as you can not have one without the other. I am really surprised with you being a fan of Dr. Tyson that this is not second nature to you. The disinformation is in not describing everything I just posted.
You don't even know if what you're posting is true, but you make a thread bashing a professor who is right about what he said? Or are you saying you don't know if what he's saying is true?
The thing his status refers to is the galactic allignment, not the rotation of the galaxy. I don't see how that is disinformation.
Yes I read your post, but I am still confused. You just said "the only thing about the location is where it ends", but who chose this location? The Mayans? They weren't alive 230 million years ago, so did they say "We're going to mark the end of the rotation 2,000 years in the future"? That's what I'm trying to understand, the origins of this "end" in the rotation.
The only thing about the location is where it ends, which is the galactic alignment in question. I am sorry but I assume everyone on this site knows about the Mayan calender. Some of your questions are already answered here if you even paid the smallest attention to the post, of course I am talking about December 21,2012. In the galaxy image, our sun is highlighted by the little yellow dot labeled SOL and we are located on the Orion spur where it also happens we rotation on that axis as well.
We are always lined up with the center. Draw a line from our Sun to the galactic center, and we are lined up. Do you mean lining up on the same plane as the galactic center? Because as Neil posted in his twitter status, we do that annually.
My post is about the galactic center but how can I not mention the rotation when it's a big part of lining up to the center. It is like talking about runners crossing the finish line on a track without mentioning the race as they run around it.
I completely disagree, that is not disinformation. He probably heard lots of people saying "We're going to line up with the galactic center in 2012!", and he wanted to set the record straight and tell them what's really happenning.
What I do not know is if the Mayan prediction is true but I do know you can not have galactic alignment without galactic rotation the two go hand in hand as you can not have one without the other. I am really surprised with you being a fan of Dr. Tyson that this is not second nature to you. The disinformation is in not describing everything I just posted.
Dude I know all about the 2012 prediction, that's not what I asked about.
Let me also say maybe you should google or wikipedia the Mayan calender prophecy just to get familiar with the 2012 prediction. I would be posting all day to really explain it all but I am sure you can search and find a plethora of info here on ATS.
Originally posted by basilray
reply to post by benrl
Do you consider his statement misleading and just a side note he will never answer any of my tweets about this when I ask him.
by Fraser Cain on May 12, 2009
Just like the Earth orbits the Sun, the Sun itself is part of the Milky Way galaxy. It takes about 220 million years for the Sun to complete a single journey around the Milky Way. But the Sun also bobs up and down as it travels in orbit around the center of the galaxy. The oscillation takes a total of 64 million years to complete. And there's a moment when the Sun passes directly through the galactic disk and there's a perfect galactic alignment between the Sun and the center of the galaxy.
When's that galactic alignment going to happen? It's almost impossible to know exactly. The Milky Way is 100,000 light-years across, but only 1,000 light-years thick. So during the course of that 64 million year cycle, the Sun rises above the galactic plane 500 light-years, passes down through the galactic plane, until it's 500 light-years below and then comes back up again.
There has to be a moment when everything's in perfect alignment, but the timescales are so long that astronomers couldn't calculate it. Of course, this alignment with the center of the galaxy doesn't have an effect on the Earth or the Solar System, it's just like crossing an imaginary line in space, like traveling from Canada to the United States in your car.
There's another type of galactic alignment. This is where the Earth, Sun and the center of the galaxy are in perfect alignment from our perspective. This actually happens every year during the winter solstice, on December 21st. Because of a wobble in the Earth's orbit, the positions of the constellations slowly shift from year to year. The most perfect galactic alignment between the Earth, Sun and the center of the Milky Way happened back in 1998, but now we're slowly shifting away from that alignment. In the coming decades, the perfect alignment will shift to another day.
Again, the alignment of these objects is purely a coincidence.
Mayan Astronomy
April 5, 2000 - FOX News
Approximately one millennium before Archbishop Usher of Armagh concluded that creation occurred at 4004 B.C., the Mayans had calculated the cosmos was 90 million years old.
Like other pre-Columbian civilizations, the Maya had a profound knowledge of the sky. Their priests recorded astronomical observations and passed them down from generation to generation.
The result was an extremely accurate calendar that predicted the coming of eclipses and the revolutions of Venus to an error of one day in 6,000 years.
Only a handful of the parchments that chronicle this knowledge survived the zealous bonfires of the missionaries; those that did are now called codices. In one, for example, Venus is represented as a figure with two masks, symbolizing its appearance in the early morning and evening.
The calendar itself was divided into cycles 3 million years long, subdivided into units of 20 years, 400, 8,000 and 158,000 years. There were also subunits for marking the death and rebirth of the sun and fire. Rituals punctuated the cycles and acted like the needles of a clock, marking the passage of time.
We are always lined up with the center. Draw a line from our Sun to the galactic center, and we are lined up. Do you mean lining up on the same plane as the galactic center? Because as Neil posted in his twitter status, we do that annually.
Or are you referring to us alligning with an imaginary line that represents the end of a full rotation around the galactic center?
Source: earthsky.org...
Scientific studies indicate that the solar system lies several dozen light-years north of the galactic plane. What’s more, we are continuing to travel northward, away from the plane of our Milky Way galaxy, at some 7 kilometers per second. Therefore, we won’t be physically passing through the galactic plane in 2012 or anytime in the near future.
Source: earthsky.org...
According to the computational wizard Jean Meeus*, the solstice points were in alignment with the galactic equator as recently as the year 1998 – in other words, they were closer on the sky’s dome then. But in 2011 and 2012, these points – the solstice point, and the point where the sun crosses the galactic equator – are near each other on our sky’s dome.