The Pleiades (Tianquiztli) are portrayed in the upper left
of the document. The other symbols represent other constellations, a meteor or shooting star, the sun, the moon, the eclipses. The image is from the Primeros Memoriales, a sixteenth-century colonial manuscript
compiled by Fray Bernardino de Sahagun.
Click on image for full size
Image courtesy of the book 'Moctezuma's Mexico' by David Carrasco and Eduardo Matos Moctezuma. University Press of Colorado, 1992.
The Pleiades were known to the Aztecs as Tianquiztli which means "marketplace."
The Aztecs were great observers of the
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