Eratosthenes

Ahmednagar, India

March 2009

Flag City Country School Latitude (°) +N/-S Longitude (°) +E/-W
Ahmadnagar India Bhaskaracharya astronomy center 19.083 74.750
Date Gnomon Shadow Angle
March 20 100 cm 35.5 cm 19°32’ = 19.545°
Ahmadnagar India
Research Center Bhaskaracharya
Longitude 74°45’ E
Latitude 19°05’ N
Angle +19°33’ = +19,55°

Bhaskaracharya astronomy research centre in Ahmadnagar,Maharashtra and Mr. Dinesh nisang is asociate with.
He took initiative to do experiment to find out the circumference of the earth. - place : Ahmadnagar, INDIA, Maharashtra

  • latitude : 19.0833 degree
  • distance from equator : 19.0833 x111.111 = 2120.36 km
  • length of device : 100 cm.
  • length of shadow : 35.5 cm.
  • angle= 19.54°
  • circumference of the earth= 2120.36 x360/ 19.54 =763331.23/19.54 = 39065.05 km.
Ahmadnagar India
Research Center Bhaskaracharya
Longitude 74°45’ E
Latitude 19°05’ N
Angle +19°33’ = +19,55°

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