Cuicuilco's circular pyramid is the oldest known pyramid structure in the Valley of Mexico, dating to approximately 800-600 BCE. Its distinctive round form — 110 meters in diameter and originally 25 meters tall — was partially engulfed by lava from the Xitle volcano eruption around 400 CE. The surviving structure rises from a frozen sea of black basalt, a geological time capsule. Cuicuilco preceded Teotihuacan as the dominant settlement in the Basin of Mexico. Its circular design suggests astronomical observatory function. The site's 45.16° Giza bearing links it to the corridor of Central Mexican sacred architecture.
WikipediaStellar Alignments (89 stars)
| Star ▴ | Rise Az ▴ | Rise Δ ▴ | Set Az ▴ | Set Δ ▴ | Tradition ▴ |
|---|---|---|---|---|---|
| Pleiades (Alcyone) | 87.1° | — | 272.9° | — | |
| Orion's Belt (Alnilam) | 105.4° | — | 254.6° | — | |
| Sirius | 112.1° | — | 247.9° | — | |
| Thuban | — | — | — | — | |
| Vega | 44.1° | — | 315.9° | — | |
| Regulus | 64.5° | — | 295.5° | — | |
| Aldebaran | 92.0° | — | 268.0° | — | |
| Antares | 97.5° | — | 262.5° | — | |
| Fomalhaut | 137.6° | — | 222.4° | — | |
| Arcturus | 41.1° | — | 318.9° | — | |
| Galactic Center (Sgr A*) | 105.5° | — | 254.5° | — | |
| Galactic Anti-Center | 74.5° | — | 285.5° | — | |
| Deneb | 51.0° | — | 309.1° | — | |
| Capella | 59.1° | — | 300.9° | — | |
| Castor | 61.2° | — | 298.8° | — | |
| Pollux | 63.6° | — | 296.4° | — | |
| Procyon | 85.1° | — | 274.9° | — | |
| Betelgeuse | 95.1° | — | 264.9° | — | |
| Rigel | 114.4° | — | 245.6° | — | |
| Bellatrix | 98.8° | — | 261.2° | — | |
| Achernar | — | — | — | — | |
| Acrux | 133.3° | — | 226.8° | — | |
| Mimosa | 129.1° | — | 230.9° | — | |
| Altair | 81.0° | — | 279.0° | — | |
| Kochab | — | — | — | — | |
| Dubhe | — | — | — | — | |
| Alkaid | — | — | — | — | |
| Mizar | — | — | — | — | |
| Hamal | 90.2° | — | 269.8° | — | |
| Zubenelgenubi | 82.3° | — | 277.6° | — | |
| Alnitak | 105.8° | — | 254.2° | — | |
| Mintaka | 104.9° | — | 255.1° | — | |
| Saiph | 112.8° | — | 247.2° | — | |
| Peacock | 147.1° | — | 212.9° | — | |
| Miaplacidus | 149.3° | — | 210.7° | — | |
| Rigil Kentaurus | 131.2° | — | 228.8° | — | |
| Hadar | 129.1° | — | 230.9° | — | |
| Gacrux | 126.3° | — | 233.7° | — | |
| Naos | 127.8° | — | 232.2° | — | |
| Suhail | 124.8° | — | 235.2° | — | |
| Avior | 144.2° | — | 215.8° | — | |
| Atria | 142.4° | — | 217.6° | — | |
| Regor | 134.1° | — | 225.9° | — | |
| Alsephina | 137.7° | — | 222.3° | — | |
| Shaula | 112.7° | — | 247.3° | — | |
| Ankaa | 160.1° | — | 199.9° | — | |
| Menkent | 102.7° | — | 257.3° | — | |
| Alpheratz | 81.8° | — | 278.2° | — | |
| Eltanin | 26.9° | — | 333.1° | — | |
| Kornephoros | 48.2° | — | 311.8° | — | |
| Rasalhague | 62.8° | — | 297.2° | — | |
| Denebola | 53.1° | — | 306.9° | — | |
| Alhena | 82.1° | — | 277.9° | — | |
| Alphard | 89.0° | — | 271.0° | — | |
| Bharani | 93.1° | — | 266.9° | — | |
| Pushya | 67.0° | — | 293.1° | — | |
| Adhara | 124.3° | — | 235.7° | — | |
| Wezen | 120.7° | — | 239.3° | — | |
| Navi | 50.0° | — | 310.0° | — | |
| Schedar | 54.1° | — | 305.9° | — | |
| Nunki | 109.1° | — | 250.9° | — | |
| Canopus | 150.8° | — | 209.2° | — | |
| Kaus Australis | 114.0° | — | 246.0° | — | |
| Sabik | 89.5° | — | 270.5° | — | |
| Scheat | 79.7° | — | 280.3° | — | |
| Enif | 91.4° | — | 268.6° | — | |
| Diphda | 133.3° | — | 226.7° | — | |
| Alphecca | 38.3° | — | 321.7° | — | |
| Rasalgethi | 59.4° | — | 300.6° | — | |
| Spica | 76.8° | — | 283.2° | — | |
| Zubeneschamali | 76.2° | — | 283.8° | — | |
| Unukalhai | 60.9° | — | 299.1° | — | |
| Murzim | 117.4° | — | 242.6° | — | |
| Phact | 137.9° | — | 222.1° | — | |
| Mirfak | 60.9° | — | 299.1° | — | |
| Vindemiatrix | 53.6° | — | 306.4° | — | |
| Markab | 92.7° | — | 267.3° | — | |
| Algol | 70.8° | — | 289.1° | — | |
| Sadalmelik | 103.5° | — | 256.5° | — | |
| Sadalsuud | 105.4° | — | 254.6° | — | |
| Sun (Summer Solstice) | 65.1° | — | 294.9° | — | |
| Sun (Winter Solstice) | 114.9° | — | 245.1° | — | |
| Sun (Equinox) | 90.0° | — | 270.0° | — | |
| Sun (Northern Cross-Quarter) | 72.5° | — | 287.5° | — | |
| Sun (Southern Cross-Quarter) | 107.5° | — | 252.5° | — | |
| Moon (N Major Standstill) | 59.4° | — | 300.6° | — | |
| Moon (S Major Standstill) | 120.6° | — | 239.4° | — | |
| Moon (N Minor Standstill) | 70.1° | — | 289.9° | — | |
| Moon (S Minor Standstill) | 109.9° | — | 250.1° | — |
Convergence Events (1)
46.0°
Algol Rise
Arabic (demon head), Egyptian (Cairo Calendar 1244 BCE), Chinese (great tomb), Hebrew
Δ 0.8°
Reference Bearings (20 landmarks)
| Landmark | Bearing | Distance |
|---|---|---|
| giza | 45.16° | 12,380 km |
| angkor wat | 323.51° | 15,588 km |
| nazca | 143.31° | 4,618 km |
| teotihuacan | 39.10° | 56 km |
| stonehenge | 39.22° | 8,843 km |
| gobekli tepe | 34.74° | 12,350 km |
| machu picchu | 139.02° | 4,641 km |
| easter island | 192.32° | 5,276 km |
| cahokia | 20.30° | 2,325 km |
| sedona | 326.98° | 2,128 km |
| mecca | 46.62° | 13,660 km |
| jerusalem | 41.22° | 12,542 km |
| vatican | 43.82° | 10,251 km |
| lhasa | 348.29° | 14,460 km |
| kailash | 359.45° | 14,414 km |
| uluru | 252.96° | 14,835 km |
| tiwanaku | 138.08° | 5,198 km |
| chaco canyon | 337.06° | 2,052 km |
| mt shasta | 323.22° | 3,283 km |
| levis stadium | 317.11° | 2,988 km |
Related Sites — vega