Why your star sign is not a constellation

Two different things that share names

The twelve zodiac constellations are patterns of real stars, like Leo and Taurus. The twelve star signs are something else. A sign is an equal thirty degree slice of the sky, measured not from the stars but from the point where the Sun sits at the spring equinox. The signs borrowed the constellations’ names a couple of thousand years ago, back when the two roughly lined up.

They have drifted apart

Here is the honest part. Earth’s axis slowly wobbles, the same precession that keeps changing which star is the pole star. Over the last two thousand years it has shifted the signs almost a full slice away from the constellations they were named after. When a chart says the Sun is in Taurus, the Sun is usually sitting in front of the stars of Aries.

Which one Hali uses

Hali uses the tropical zodiac, the season-based slices tied to the equinox, which is what Western astrology has meant all along. It was never really a claim about which constellation the Sun stood in front of. The constellation names are a historical echo, not a map of where the planets are tonight. Both are real. They are just not the same thing.