The Kanayama Megaliths and Archaeoastronomy in Japan
The Ancient Solar Calendar

Relations with the Sun's Track @The Megaliths of The Iwaya-Iwakage Remains Midsummer


No Sunlight Enters the Remains during 120 days in Midsummer
The Sun's Track Viewed from the Center of the Remains

About 60 days before the summer solstice (Around Apr. 22nd)
The sunlight no more enters the remains (Azimuth 83, Altitude 29)
Around the summer solstice (Around June 21st)
No sunlight enters the remains because of the sun's higher track.
About 60 days after the summer solstice (Around Aug. 20th)
The sunlight begins to enter the remains (Azimuth 83, Altitude 29).



The Rising Sun
The sun of the summer solstice rises from the direction that the Menhir (the stone H) points to.
The Setting Sun
The light of the setting sun on the mountain enters the narrow path between the stone E and the Menhir.

Then the light must have entered the grotto beneath the marked stone of 40 meters east, until the area was covered by earth and sand.
 



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