Why did Aristarchus's heliocentric notion not gain widespread acceptance initially?
Answer
Lack of perceived stellar parallax.
Aristarchus's idea was rejected largely because ancient observers could not detect stellar parallax, which is the apparent shift in star positions that occurs as the Earth moves in its orbit.
#Videos
Models of the Universe [Geocentric to Heliocentric] - YouTube
Related Questions
What are cosmological models primarily intended to organize?What observation made the geocentric perspective intuitively appealing?What specialized motions did Ptolemy use to map observed planetary paths?What specific celestial phenomenon did Ptolemy’s complex system account for?Which ancient astronomer first suggested the Sun occupied the center of known celestial bodies?Why did Aristarchus's heliocentric notion not gain widespread acceptance initially?What aspect of Ptolemy's method did the Copernican system dramatically simplify?What is the dominant modern model for the universe's origin, describing an expansion from a hot, dense state?Which geometric model is currently favored by observations regarding the universe's density?What is considered the most profound philosophical outcome of refining cosmic models since Ptolemy?What two components are incorporated into the current Lambda-CDM model?