When did constellations start to be drawn with curved lines as opposed to straight lines?

by aion117
Question by //SIGN: When did constellations start to be drawn with curved lines as opposed to straight lines?
I know that constellations are usually drawn with straight lines to connect the stars, but when did they begin to be draw with curvilinear lines, if ever?
Thanks!


Best answer:
Answer by GeoffGI've never seen constellations drawn with anything other than straight lines.

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