The framework of Spanish charts, for example, was provided by the observed longitudinal difference between Seville and Lima in Peru measured by the eclipse.
Uphahla lwe-tshati yaseSipayini, umzekelo wokubonelela ngokwenze umngqalelo wobude wokujonga umahluko phakathi kweSevile ne Lima phakathi ePeru elinganiselwa kwinyanga mnyama.