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ERATOS PROJECT [home page]
Eratos collaborative measure
Pedagogical Module
Work Process
Institutional Partnerships
Parallelism of solar rays
Geogebra geometric figure
2019 Highlights
TASK FORCES
Take the measure
Enter the data
Take the photos
Draw the figure
Transfer the photos
Transfer the figure
LIVE MEETINGS & MEASUREMENTS
EQUINOXES & SOLSTICES
20 March Equinox
21 June Solstice
23 September Equinox
22 December Solstice
No NooN SHADOW DAYS
05 April 2019 (Guarne)
09 May 2019 (Hyderabad)
06 September 2019 (Guarne)
100 Hours of Astronomy
Bibliotheca Alexandrina 2019
World Space Week
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ERATOS QUIZ
Evaluation
month tables 2021
San Juan PUERTO RICO
Castillo San Felipe del Morro San Juan