Unidos bajo una misma estrella: comparación del movimiento diario del Solobservado desde distintas localidades

Abstract

The "Together belowthe same star" project proposes that high school students living in distant locations reconstruct the daily path of the Sun in the sky from observations carried out from their own homes. Each student must measure the direction and length of a gnomon's shadow at four different times and enter their data into a spreadsheet that represents the measured values on a polar graph. The implementation in four cities, three from Argentina and one from Costa Rica, allowed drawing conclusions about the local nature ofthe daily solar motion. The results show the precision of the methodology used and the need to incorporate the magnetic declination correction. The proposal favored the connection between the students and their celestial environment and the development ofscientific skills related to measurement, data analysis and modeling.