What defines the astrological 'signs' as opposed to the physical constellations?

Answer

Arbitrary, equal 30-degree divisions of the ecliptic

Astrological signs are arbitrary, equal 30-degree divisions of the ecliptic that are fixed relative to the Earth's seasons, unlike the physical constellations which are vast groupings of stars.

What defines the astrological 'signs' as opposed to the physical constellations?

#Videos

The Sky Part 7: the Sun's Annual Motion - YouTube

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