September equinox




AnisacateArgentinaFundación Caminos de Anisacate-31.717-64.400
Carmen de ArecoArgentinaEscuela tecnica Nª1-34.380-59.820
Buenos AiresArgentinaInstituto San Pedro Nolasco-34.600-58.450
Rio de JaneiroBrazilGrupo de Escoteiros 52 Fabiano de Cristo-22.550-43.467
Rio de JaneiroBrazilGrupo 31 Marechal Rondon-22.967-43.217
Rio de JaneiroBrazilCentro Educacional Nosso Mundo-22.950-43.500
Rio de JaneiroBrazilMAST - Museu de Astronomia e Ciências-22.950-43.224
VinhedoBrazilE. E. Patriarca da Independência-23.030-46.984
LafrançaiseFranceCollège Antonin Perbosc44.1271.238
IoanninaGreeceExperimental College39.66720.850
GhaziabadIndiapvsClub,Vijay nagar28.63377.417
MeerutIndiaNAS Inter College28.98377.717
MeerutIndiasisola kalan Jani28.98277.568
MeerutIndiaRaghunath Girls' Degree College28.98777.711
DholpurIndiaGvt Sen. Sec. School26.65977.809
Gressoney St JeanItalyEcole45.7837.817
Pont St MartinItalyCollège45.6007.800
LitijaSloveniaGimnazija Litija46.05914.823
LjubljanaSloveniaSC PET46.06714.154
JeseniceSloveniaOŠ Prežihovega Voranca46.43314.050
MedvodeSloveniaOsnovna šola Preska46.13314.417
VodiceSloveniaOŠ Vodice46.18514.496
TunisTunisiaEcole primaire 16 Rue de Russie36.79510.177
PaysandúUruguayLiceo N°1 de Paysandú-32.316-58.093
TepeacaMexicoCETIS 15118.969-97.903
SmithtownNY USASmithtown High School40.867-73.150





12 countries

27 schools

37 partnership calculations : average circumference 40843km (error 2.1%)

The real meridional circumference 40008km

Children pages

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Ghaziabad, India 22sept


Meerut, India 22 sept


Rio Brazil, 22sept


Kaohsiung CCAFPS, Taiwan 20 sept

Tepeaca, Mexico 19 sept


Lafrançaise, France 19 sept





Ioannina Greece 19 sept

Meerut, India 19 sept



Rio de Janeiro 19 sept


Jesenice Slovenia, 19 sept

Anisacate, Argentina 19 sept


Anisacate, Argentina 18 sept

These photos are from september 18th at the Garden Vicente Lopez y Planes with five years old children. Mrs Alejandra Adriana Baez teacher, directs the initiation of these children to the project  Eratosthenes 2014, the Foundation collaborates with them. The educational project is very interesting and I'll send when ready and approved by the school board. I think an original initiative because of the age of the children, who are very excited as their parents. It would be interesting to join the group.



Santa Eufemia, Argentina 18 sept



Ioannina, Greece 18 sept


Rio de Janeiro Brazil, 18 sept


Santa Eufemia Argentina, 17 sept

Kaohsiung, Taiwan 16 sept



Lafrançaise, France 16 sept





Anisacate, Argentina 15 sept

Lafrançaise, France 15 sept

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