Thu Jan 13, 12:57 pm ET

Earth’s ‘wobble’ means your zodiac sign may be wrong

By Liz Goodwin

A Minnesota astronomer confirms what many have suspected: Your horoscope is quite possibly wrong.

Earth's shifts on its axis over the past 3,000 years have changed the 12 zodiac signs. For example, think your sign is Aquarius? You may be a Pisces. (There's also a 13th sign, Ophiuchus, that's based on a constellation the ancient Babylonians threw out for symmetry thousands of years ago.)

So who's to blame for this scam on zodiac devotees?

The ancient Babylonians based the zodiac on which constellation the sun appeared to be in when a person was born. Since then, the moon's has exerted a gravitation pull on Earth, causing a "wobble" on its axis that has shifted the stars' alignment by about a month, the Minneapolis Star-Tribune reports.

"Because of this change in the tilt, the Earth is over here and the sun is in a different constellation than it was 3,000 years ago when this study of the stars began," astronomer Parke Kunkle told the Twin Cities' KARE-TV.

The shift isn't new, Kunkle says -- the zodiac world just hasn't taken the wobble into account.

Here's your new sign below:

Capricorn: Jan. 20-Feb. 16

Aquarius: Feb. 16-March 11

Pisces: March 11-April 18

Aries: April 18-May 13

Taurus: May 13-June 21

Gemini: June 21-July 20

Cancer: July 20-Aug. 10

Leo: Aug. 10-Sept. 16

Virgo: Sept. 16-Oct. 30

Libra: Oct. 30-Nov. 23

Scorpio: Nov. 23-Nov. 29

Ophiuchus: Nov. 29-Dec. 17

Sagittarius: Dec. 17-Jan. 20