The Ancient Astronomy of Easter Island: The Mamari Tablet Tells (Part 2)
Sergei Rjabchikov

TL;DR
This paper analyzes the Mamari tablet's inscriptions, revealing detailed ancient astronomical knowledge of Easter Island, including calendar events, celestial phenomena, and their cultural significance, based on historical and astronomical data from 1680 A.D.
Contribution
It provides new insights into Easter Island's ancient astronomy and calendar system through detailed analysis of the Mamari tablet and historical astronomical events.
Findings
Date of the calendar record is linked to the summer solstice of 1680 A.D.
The tablet references a solar eclipse and Halley's Comet of 1682.
New data on star Antares observations were obtained.
Abstract
The beginning of the calendar record inscribed on the Mamari tablet has been dated to the day of the summer solstice of December 20, 1680 A.D. The moon was not visible earlier at night. Because of a possible solar eclipse it was a perilous day, a precursor of the future misfortunes: the motion of Halley's Comet of 1682 A.D. and the rebellion of the western tribes. The new data about the watchings of the star Antares have been obtained, too.
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