Measurements  at school or at home from 17/6 to 22/6

eTwinning and eTwinning+ schools (5)

| Aigio | Busteni | Has | Larissa | Montcuq | Nis |

America (5)

| Bayamón | Chivilcoy | Del Castilho | Niteroi | Rio de Janeiro |

On june solstice the Sun at the vertical of Cancer Tropic at solar noon

All the measures on 19, 20 and 21 june are available

The calculations with the measures from Aigio and Niteroi (14 and 17 June) are less accurate.

The calculations are made with  the Cancer tropic