Design and Construction of an Equatorial sundial by Iraj Safaei, head of University of Kashan Observatory
Mr Safaei have designed an equatorial sundial for Passenger's Park in Sirjan with diameter of 3 meters.
1- Determine the Iran standard time
2- Detection Iranian Calender
3- Analema curve
4- Noon prayer time
5- sunrise and sunset time
6- lenght of day