|A Map of Oaxaca and It's Sky Chart|
|Mixtec map of Apuala and Tilantongo with Dynastic Rulers.|
Slide available at the Benson Library at the Univerity of Texas at Austin.
|The Fifth Sun With its Last Trajectory Across the Mixtec Sky|
The first game included a knife that came out of a spinning ball. It was meant to kill Hunahpú. He afforded it easily. In Astronomy, the knife was actually a bi-polar jet with gasses coming out of the north and south poles, and had the appearance of a knife. This is similar to the one in McNeil's Nebula that NASA mistaken called a "Toddler Star." It actually was a "dying star."
The second run of the double comet, Xbalenqué tied a turtle carapace over the ball court and then threw a stone at it. The carapace broke into hundreds of pieces; it appeared to be seeds of a calabasa.
The colorful blue-green serpent in the sky, then passed by the earth and unloaded first burning ash from its tail, and the meteorites and even larger rocks fell after that. According to the information gathered about the Sun Stone by M. Leon-Portilla, and other scholars, the water from the gulf poured over the land and went over the mountains that stood in its way. Both the men of mud died at that time, and so did the wooden manikins.
The last run of the double comet passed even closer to earth when it came over the western horizon. It was so bright and stayed so long that people had to remain in the caves until it passed by. It was called "the Birth of the Fifth Sun," that "was not the sun we see in the sky" at the present time. 
The Ring Nebula was discovered with the help of the Hubble Satellite Telescope by Greenwich/Chandra Observatories.  Its appearance as a 'rose" is amazing. I would guess that this star was the nova, that exploded and became the great gaseous cloud that we now call a nebula.
On the Apuala/Tilantongo map, a prominent constellation is drawn out. It also has a very bright star at its feet. One could identify Orion with Sirius, the brightest star in the sky, since these glyphs are all above a trajectory line from one side of the world to the other. 
It seems the other two Sky Trees that hold up the world had not yet been seen. Or they were not invented by the Aztec or Mixtec astronomers, and only later identified and included in the Borgia Codex.
However, one only has to read some of the comments made, on July 17, 2008, by radio and television stations in the area about a comet that came from the northwest and sped over Oregon, Washington, and Southern Canada, and possibly into Idaho a few years ago. The comment made by a person who saw it all, claimed that it looked and sounded as if a 1,000 transformers had exploded all at once.  The report of the Aztec world was that the sky was red [during the day] for a long time, until a human took a rabbit and threw it at the blazing sun (here the double comet). 
Thus, the "sun" in the northwest was a comet. And the Native Americans, the Aztec, the Maya, the Mixtec, and the Zapotec, etc, all knew without a doubt, that the "real" sun always rose in the east. , even though it was "born' in the west. During that time when the comet was brighter than the sun, it actually met the real sun in the middle of the sky, at noon time. Since the comet was brighter, it overrode the light of the "real sun" with its powerful fiery brilliant tail as it sped eastward to the true home of the Sun we know today.
Dawn of Life and the Glories of Gods and Kings. New York: Simon and Schuster.
 Read, Kaye Almere, (1998). Time and Sacrifice in the Aztec Cosmos. Bloomington & Indianapolis, Indiana: Indiana University Press. p. 56: VI. Lines 14-20.