Original sentence: But the awkwardly complex geocentric model, designed to evade recognition of plainly visible planetary parallax, was assumed to be a more comfortable explanation for the unobservability of the parallel phenomenon, stellar parallax.The pioneering giant Aristarchus's ideas fell into oblivion because they led away from the main-stream that had already been laid down by the less perceptive school forming "giants" of philosophy, Plato and Aristotle.Using correct geometry, but insufficiently accurate observational data, Aristarchus concluded that the Sun was 19 times farther away than the Moon
Edited sentence: (Possibly he.) Using correct geometry, but insufficiently accurate observational data, Aristarchus concluded that the Sun was 19 times farther away than the Moon.And Aristarchus was a student of light and vision.But the awkwardly complex geocentric model, designed to evade recognition of plainly visible planetary parallax, was stubbornly assumed to be a more comfortable explanation for the unobservability of the parallel phenomenon, stellar parallax.The pioneering giant Aristarchus's ideas fell into oblivion because they led away from the main-stream that had already been laid down by the less perceptive school forming "giants" of philosophy, Plato and Aristotle, and because proposing humanity's noncentrality in the universe threatened suppressive established religious leaders from Cleathes to the Inquisition.The two estimates' agreement may even be exact.gauging the lunar terminator's deviation from linearity, to 1 degree orbital precision, is beyond humans' ocular limit, while 3 degree precision is about at that limit.meant at least that amount, since