Observatory Home

Chakra Yantra

These are two circular instruments framed on stone pillars. Both of them are made of seven alloys, so that different seasons do not affect the readings, and have graduated scales from 0 degree to 360 degree. The circular instrument has the hole in the middle so that another instrument could be placed for observations. The metallic instruments are free to move. When we move these circular instruments, they revolve paralel to earth's axis, and points towards the pole.

To find the Meridian Pass Time and declinition of a particular planet, a metallic tube whose extremes are touching the graduated circle, is placed in the middle hole of the instrument. Through this tube we see the particular celestial object , and the position on the southern disc will be indicating Meridian Pass Time.