Part 1: Introduction to Astronomic Astrology
The Red Line = The Sun's Ecliptic Path!
The Sun's Ecliptic Path is the line the sun travels along, completing 360 degrees every year, quite literally a full circle moment.
Most of the other planets follow pretty close to the same path/line as the sun but not exactly, with the exception of Pluto, who's path ends up being very different!
The sun travels through these constellations and we consider them to be the constellations of the zodiac BECAUSE the sun travels through them:
Aries
Taurus
Gemini
Cancer
Leo
Virgo
Libra
Scorpio
Ophiuchus
Sagittarius
Capricorn
Aquarius
Pisces