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2 - برج کشمر (بردسکن)

2- Tower of Keshmar

 

1.      Tower of Keshmar     

Has 12 walls , 48 columns 1 door ,3 windows ,8 holes on the columns , 2 stairs ,1 window on corn ,and many holes on corn   it  is like Radkan tower.

We can observe sunlight and moonlight comes from holes ,  windows and on the columns. 

We can find azimuths and  altitude, sun, moon  and stars in this observatory .

 2.     sunlight comes from a big  window on the corn and passes from the only hole of the hemisphere at Noruz and find equinox day .this direction made for finding equinox day and first day of the Iranian calendar .

  Sunlight on the Columns find exact midday and the tower made exact celestial meridian .

geographical latitude is 35:18

3.      sunlight comes from two windows at Noruz and find equinox day .

 Tower  designed  by Khaje Nasir Tusi group like the tower of Radkan , plus Maragheh observatory .

3 -

3- Tower of Gonbade Sorekhe Marageh

 4.   this is the Tower of Gonbade Sorkhe Maragheh . it is a part of observatory of Maragheh.

geographical latitude is 37:20

5.      3D perspective .sunlight drops on the door at the fist day of spring (Nuroz) and finds equinox day .

We can observe sunlight and moonlight comes from holes ,  windows and on the columns. 

Sunlight on the columns find exact midday and the tower  was made exact celestial meridian .

Please wait for more.

 

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