Esta semana, mientras escribiendo un articulo sobre eclipses, se me destrayaron los numeros en el Codice Dredensis. Resulto otro articula quisas algo mas interesante:. En partes:

The Dresden Codex Lunar Series presents a span of 11,457 days, equaling 11,292.124 degrees solar orbit. This amount has a sidereal correspondence with 857 days equaling 11,292.138 degrees lunar orbit (Table 1).

The "image series" of 11,457 days consists of the nine date intervals between ten images. The full ten intervals span 11,959 days, rather than the 11,960 days more accurately equaling 405 full moons. The 11,959 day interval also has a sidereal correspondence equating solar and lunar orbits. Angular lunar orbit motion during 897 earth rotations equals solar orbit motion during 11,959 days.

857 full moons = 930.013 lunar nodal = 25,377.003 earth rotations
10,600 full moons = 11,456.999 lunar orbits = 856.999 solar orbits

Lunar orbits accuracy: 11,456.999 : 11,457 = 1.0 : 1.000 000 107
Earth rotations accuracy: 25,377 : 25,377.003 = 1.0 : 1.000 000 122

In the Long Count glyphs at Uaxactun is a seven katun interval of 50,400 days, nearly equaling 138 years. ... The seven katun interval presents an equation of integer days of lunar and solar orbit motion ... Accuracy is within 20 minutes of lunar motion (1 : 1.000 003) when equating 50,400.0 and 3,770.0 days. Seven katuns represents 138 tropical years less 3.4 days (1 : 1.000 068). Accuracy of the equation of lunar orbit during 897 rotations and 11,959 days of solar orbit is 1.000 002 : 1.0.

Seven katuns also represents an integer equation of days and rotations; 50,538.0 rotations equals 50,400.0147 days. Accuracy of the 50,400 days to 50,538 rotations equation is 1.0 : 1.000 000 3.

A common Classic Maya cycle is the 819-day count, best known from Palenque, Quirigua, Copan, Tikal and later from the Dresden Codex. Lunar orbit motion for 819 days equates to 10,949.0017 days of solar orbit. Compared to integer days, accuracy is 1.0 : 1.000 000 16. Mean daily lunar motion is 13.17636 degrees, therefore the equation difference represents 12 seconds of lunar motion in comparision with 819 days. Draw a line from the center of the earth to the orbiting moon, and the difference, 0.00171 degrees, amounts to about 622 feet on the earth's surface.

Article with tables of data and more discussion here:
http://jqjacobs.net/archaeology/maya_astronomy.html