4 citations · 4 across the 3 of their papers we have counts for
4 papers
Revisiting Aristarchus's method to estimate the ratio of the distances from Earth to the Sun and the Moon
Hugo Caerols, Martín Avendaño, Felipe A. Asenjo +1
In this article we revisit Aristarchus' ancient experiment to determine the ratios between the Earth-Moon and Earth-Sun distances. We present here the construction of a simple inst…
Using smartphone photographs of the Moon to acquaint students with non-Euclidean geometry
Hugo Caerols, Rodrigo A. Carrasco, Felipe A. Asenjo
Although they are sometimes considered problematic to grasp by students, the concepts behind non-Euclidean geometry can be taught using astronomical images. By using photographs of…
Estimating the Moon to Earth radius ratio with a smartphone, a telescope and an eclipse
Hugo Caerols, Felipe A. Asenjo
On January 20th, 2019, a total lunar eclipse was possible to be observed in Santiago, Chile. Using a smartphone attached to a telescope, photographs of the phenomenon were taken. W…
Weighing the Sun with five photographs
Hugo Caerols, Felipe A. Asenjo
With only five photographs of the Sun at different dates we show that the mass of Sun can be calculated by using a telescope, a camera, and the Kepler's third law. With these photo…