Angkor Wat Equinox

Short description: Astrological phenomenon in Cambodia

Angkor Wat Equinox

ព្រឹត្តិការណ៍សមរាត្រី

Equinox at Angkor in 2012

Genre| Solar phenomena
Date(s)| Equinox
Frequency| Bi-annually
Venue| Angkor Wat
Location(s)| Siem Reap
Country| Cambodia

The Angkor Wat equinox is a solar phenomenon considered as a hierophany that happens twice a year with spring and autumn equinox, as part of the many astronomical alignments indicative of a "fairly elaborate system of astronomy"[1] and of the Hindu influence in the construction of the vast temple complex of Angkor Wat, in Cambodia.[2]

## Contents

* 1 Description
* 2 Architecture
* 3 Interpretation
* 3.1 An eternal reminder of Suryavarman II's ascension to the throne
* 3.2 A solar city
* 3.3 An ancient Khmer New Year
* 4 Tourism
* 5 See also
* 6 References
* 7 Bibliography

## Description

The sunrise on Angkor Wat during the equinox is such that someone standing in front of the western entrance on the equinox is able to see the sun rising directly over the central lotus tower.[3] In fact, it would be more correct to describe the phenomenon as the exact match of the shadow formed by the sunrise on Angkor Wat's central prang and the western entrance bridge.

## Architecture

Like most celestial cities, Angkor Wat contains many astronomically inspired symbols and alignments.[4] Angkor Wat was built by Suryvarman II, literally the Sun-King, during his reign for 1113 to 1150 with "astronomical and cosmic rhythm".[5] It was dedicated as a tribute to Vishnu, a solar deity according to the Rigveda.

In fact, it appears that most of the vast complex of Angkor Wat was determined by the equinox.[6] In the bas-relief at Angkor Wat, the position of the churning pivot would correspond to the position of the spring equinox. The 91 asuras in the south represent the 91 days from equinox to winter solstice, and the 88 northern devas represent the 88 days from spring equinox to summer solstice. In fact, there are either 88 or 89 devas in the scene, 89 if the deva atop Mount Mandara is counted with the others. There are 88 or 89 days from the spring equinox, counted from the first day of the new year, to the summer solstice.[7]

In fact, the solar alignment is not limited to Angkor Wat, but includes many other temples of the Khmer civilization, as it connects Angkor Wat with other temples on the Ancient Khmer Highway from the West Mebon to the Preah Khan of Kompong Svay.[8]

## Interpretation

### An eternal reminder of Suryavarman II's ascension to the throne

Scholars theorize that Suryavarman II was crowned sovereign in Angkor Wat during the equinox. The temples' calibrated use of equinox sunrises to highlight the central tower and the bas-relief of the churning of the ocean of milk would have served as an eternal reminder of this king's "ringing in a new golden age."[9]

### A solar city

While Angkor is also known as an hydraulic city since Bernard Philippe Groslier,[10] the Angkor Wat equinox manifests how Angkor was also a solar city. According to Eleanor Manikka, "measurements of the temple recorded data, fixed solar and lunar alignments, defined pathways into and out of sanctuaries, and put segments of the temple in precise association with rays of sunlight during the equinox and solstice days".[11] Accordingly, the gigantic representation of the churning of the sea actually works as a calendar: it positions the two solstice days at the extreme north and south, counts the days between them, and measures 54 units for the north- and southbound arcs of the sun and moon, emulating the symbolism on the bridge or in the western entrances, which repeat the 54/54-unit pairs several times.

> The stunning vision of the sun as it comes up over the tower transforms the previously abstract solar symbolism into a living experience. For a rare moment, the observer actually sees the calendrical function of Angkor Wat in action.

— Eleanor Mannikka, Angkor Wat: Time, Space, and Kingship, page 94

### An ancient Khmer New Year

The spring equinox, which receives such a special treatment at Angkor Wat, evidently marked the onset of the calendar year.[12] However, during the thirteenth century, many years after the reign of Suryavarman II, the Khmer New Year was moved to the fifth lunar month, Chate, which corresponds to mid-April, in order for farmers to have more time to celebrate once the dry season was over. The astrological New Year that was celebrated before then occurred when the constellation of Aries or Ram appeared. This phenomenon occurred on the vernal equinox on March 21, but because of the precession of the equinoxes, the sun at the vernal equinox is not seen in the constellation of Pisces and enters Aries around April 13 or 14.[13]

## Tourism

The solar alignment of equinox at Angkor Wat is attracting a growing number of tourists, in a new trend of tourism connected to solar phenomena, also seen in such places such as Luxor and Vezelay Abbey.

In 2022, Angkor Wat ranked No. 1 as the best place in the world to watch sunrise and sunset, in part because of the Angkor Wat equinox phenomenon.[14]

## See also

* Orientation of churches
* Spring equinox in Teotihuacán

## References

1. ↑ Pande, Govind Chandra (2006). "Time, Space and Astronomy in Angkor Wat" (in en). India's Interaction with Southeast Asia. Project of History of Indian Science, Philosophy, and Culture. pp. 458. ISBN 978-81-87586-24-1. https://books.google.com/books?id=dnVuAAAAMAAJ&q=angkor+equinox.
2. ↑ Heinberg, Richard (1993) (in en). Celebrate the Solstice: Honoring the Earth's Seasonal Rhythms Through Festival and Ceremony. Quest Books. pp. 83. ISBN 978-0-8356-0693-6. https://books.google.com/books?id=KzjgAAAAMAAJ&q=angkor+equinox.
3. ↑ Scarre, Chris; Fagan, Brian (2016-03-10) (in en). Ancient Civilizations. Routledge. pp. 342. ISBN 978-1-317-29608-9. https://books.google.com/books?id=xAy4CwAAQBAJ&dq=angkor+equinox&pg=PA342.
4. ↑ Penprase, Bryan E. (2010-10-17) (in en). The Power of Stars: How Celestial Observations Have Shaped Civilization. Springer Science & Business Media. pp. 218. ISBN 978-1-4419-6803-6. https://books.google.com/books?id=XXOxGOpawuMC&dq=angkor+equinox&pg=PA218.
5. ↑ (in en) Khemaravidyā caṃṇeḥṭẏṅ qaṃbī qatītakāl niṅ kārruam vibhāgdān knuṅ kārsṭār niṅ sthāpanā prades Kambujā ḷoeṅviñ. Ministry of Education, Youth, and Sports. 1998. pp. 780. https://books.google.com/books?id=FzsuAQAAIAAJ&q=angkor+equinox.
6. ↑ Mannikka, Eleanor (1996) (in en). Angkor Wat: Time, Space, and Kingship. University of Hawaii Press. pp. 37. ISBN 978-0-8248-1720-6. https://books.google.com/books?id=v09uAAAAMAAJ&q=angkor+equinox.
7. ↑ Mannikka, Eleanor (1996) (in en). Angkor Wat: Time, Space, and Kingship. University of Hawaii Press. pp. 37. ISBN 978-0-8248-1720-6. https://books.google.com/books?id=v09uAAAAMAAJ&q=angkor+equinox.
8. ↑ Romain, William F. (2018-09-05). "Solstice Alignments at Angkor Wat and Nearby Temples: Connecting to the Cycles of Time". Journal of Skyscape Archaeology 4 (2): 176–200. doi:10.1558/jsa.35712. ISSN 2055-348X. http://dx.doi.org/10.1558/jsa.35712.
9. ↑ DiBiasio, Jame (2013-07-15) (in en). The Story of Angkor. Silkworm Books. ISBN 978-1-63102-259-3. https://books.google.com/books?id=fg4LBAAAQBAJ&dq=angkor+equinox&pg=PT37.
10. ↑ Groslier, Bernard Philippe (1979). "VII. La cité hydraulique angkorienne : exploitation ou surexploitation du sol ?". Bulletin de l'École française d'Extrême-Orient 66 (1): 161–202. doi:10.3406/befeo.1979.4014. ISSN 0336-1519. http://dx.doi.org/10.3406/befeo.1979.4014.
11. ↑ Mannikka, Eleanor (1996) (in en). Angkor Wat: Time, Space, and Kingship. University of Hawaii Press. pp. viii. ISBN 978-0-8248-1720-6. https://books.google.com/books?id=v09uAAAAMAAJ&q=angkor+equinox.
12. ↑ III, James E. McClellan; Dorn, Harold (2015-12-15) (in en). Science and Technology in World History: An Introduction. JHU Press. pp. 172–173. ISBN 978-1-4214-1775-2. https://books.google.com/books?id=eR0AEAAAQBAJ&dq=angkor+equinox+1150&pg=PA172.
13. ↑ Crump, William D. (2016-03-30). "Cambodia" (in en). Encyclopedia of New Year's Holidays Worldwide. McFarland. pp. 45. ISBN 978-1-4766-0748-1. https://books.google.com/books?id=ujTfCwAAQBAJ&dq=angkor+equinox&pg=PA45.
14. ↑ "The Best Place to See the Sunrise and Sunset in Every Country - Mornings.co.uk" (in en-GB). 2022-02-24. https://mornings.co.uk/best-sunrise-and-sunset/.

## Bibliography

* Stencel, Robert; Gifford, Fred; Morón, Eleanor (1976-07-23). "Astronomy and Cosmology at Angkor Wat". Science 193 (4250): 281–287. doi:10.1126/science.193.4250.281. ISSN 0036-8075. PMID 17745714. Bibcode: 1976Sci...193..281S. http://dx.doi.org/10.1126/science.193.4250.281.

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