Huaca de Chena
Huaca de Chena, also known as the Chena Pukara, is an Inca site on Chena Mountain, in the basin of San Bernardo, commune of Calera de Tango, Maipo Province, Chile. Tala Canta Ilabe was the last Inca who celebrated Inti Raymi in its Ushnu.
The word Chena means puma in estrous cycle in the Quechuan language.
History
Constructed during the domination of the Qullasuyu, the fortress of Chena Mountain is located at Cucará Point, up to where one accedes for the Catemito Road.In 1976, archeologist Rubén Stehberg published the report "Chena's Fortress and its relation with the inca occupation of central Chile". The topographic raising that the engineer Hans Niemeyer realised at it, emphasised the needings of a researcher in archaeology.
Architecture
This fortress possesses a set of nine enclosures placed in the summit of the hill and of two defensive walls of surrounding. The first approximation to a new interpretation, was published in 1991. This one points that the perimeter of the walls of the pucara, it suggests the form of an animal, possibly a feline. And the defensive walls would not be such but three areas of the Inca cosmovision.Form of a feline as Cuzco's City
This form similar to an animal, is similar to the figure of a puma that was represented in the plant of the cardinal city of Inca Empire, Cusco.Sarmiento de Gamboa indicated that the city was conceived for you builders with the form of a puma. Fernando and Edgardo Elorrieta, describe great quantity of incaic buildings located in the sacred valley, which forms of animals resemble, some of them related to the dark constellations that they saw in the night sky. Also they describe associations of these buildings with the astronomy.
The back part of this feline, presents openings of doors, corridors and separations between walls, which allow the step of the first beam of the Sun in solstice and equinox. The step of the first beam of the Sun in the winter solstice on across four doors crosses a sense. During the dawn of the summer solstice a months later, the last beam of the Sun crosses the inverse way.
The astronomic observatory of Huaca de Chena
In 1996, published a new article in a magazine of Engineering.It approached a new offer of interpretation, according to which the pucara might be a ritual site and an astronomic observatory not a fortress. The abundant specialized literature indicates that the Inca astronomers realised observations of high precision and were constructing observatories along the territory that they were occupying. These observatories were necessary for elaboration of calendars with agricultural, religious, civil purposes, etc. Boccas, penetrates into this line of analysis.
Calendar
Due to the big distances that normally existed between villages and the need to cross them afoot, makes presume that every accession of relative importance, was relying on an observatory that was allowing the inhabitants, your own and one handled calendar. The Inca accession that the Spanish found on having come to the valley of Santiago surely was not the exception. The date in which the Sun passes for nadir also was known, and a temporary axis was forming with the step for zenith. In the Inca city Wanuku Pampa Aveni discovered two important buildings which orientation is glaringly different from the rest of the city: they align with the axis, had to support a calendar coherence between remote places of your empire and the capital. In Chena, we have not seen this type of alignment towards "Cuzco's time zone".Skills of observation
June 21 is the holiday of Inti Raymi, new year Inca. If the Inca was stopping in the beginning of the most short red line, he was observing the first beam of the Sun went out across a groove between two walls. The Sun was rising after Ushnu or altar. During the celebration of the Inti Raymi of 2006 in the pucara, the young archeologist and mountaineer Ricardo Moyano observed the exit of the Sun and recognized hills the depression in where the Sun goes out, as the so-called Portezuelo del Inca. Up to this moment this name did not have explanation. From this observation, in Stehberg's opinion, it might be a question of the first line of ceque found in Santiago. In Cuzco, the ceques were consisting of imaginary lines that Coricancha was departing from and they were going towards every huaca, shaping a whole of 328 huacas. They were fulfilling functions of political, social and religious order. The Coricancha was the principal temple of the Inca culture.To the dawn of the equinox, the Sun crosses the door of the enclosure orient and then crosses the corridor. To the late afternoon it realizes the inverse way. The diagonal of the corridor of access indicates the line North - South.
By means of this simple method, and using mud and stones as materials of construction, the astronomers Incas were achieving observations of great precision.
Determination of geographical North - South Axis
For example, to determine the astronomic or geographical north, is enough to observe the point of exit and the point of putting of the star Vega, Urcu Chillay or macho calls for the Incas, about the winter solstice. Then to look for the average point, this represents the north. Probably this simple method allowed to the former astronomers to determine the axis North - South. The following scheme, product of more than one decade of observation in situ of astronomic events, shows the system of astronomic observation to simple sight, probably used by the Incas astronomers to design the pucara and then to realize your observations of the apparent movement of the stars.Winter solstice
The surrise of the winter solstice occurs in a "key" point from Chena's ushnu: the intersection of the most nearby horizon and of the most distant. In addition, in this precise direction one finds the summit of the highest hill that reaches to the south of the Cuesta Zapata. This detail might not be a coincidence, but a topographic important requirement, due to the association known about the high hills with the worship to the water in several culturesThe Huaca de Chena
A huaca is a sacred place, a space of ritual use. The previous descriptions seem to indicate that Chena's Pucará was and it is a huaca.The reasons that they support this place as ceremonial and not as military compound:
- During the excavations weapon was not found, the water is to 2,5 km from distance, the housings for 6 persons were insufficient for the garrison that is supposed it should have defended the extensive walls perimetrales;
- The pucara has a form zoomorfa and this it is a characteristic of the ceremonial centers Incas;
- If it is observed, the pucara consists of three separated spaces, which can interpret as the typical one "Tripartición Inca of Pachacuti Yamqui" ;
- Finally, it is possible to observe in the principal enclosure the existence of one Ushnu. Curiously, it is possible to plan a perfectly straight line between Chena's ushnu and the place where the Sun puts on all the winters solsticio
Pre-Hispanic cemetery