new alignment

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. 23-29. 

Ophiuchus: Nov. 29-Dec. 17. 

Sagittarius: Dec. 17-Jan. 20.

Your zodiac sign may not actually be your zodiac sign anymore. 

Astronomer Parke Kunkle says that due to changes in the Earth's alignment the dates of many zodiac signs have changed, according to NBC. In addition, there may be a 13th Zodiac sign: Ophiuchus.

Kunkle says that as the Earth and Sun slowly move the signs gradually change, as expected.

The change didn't happen over night either. The 12 signs were designated to different periods of the year almost 3,000 years ago, when astrology began, and since then the Earth's position in relation to the sun has changed.

While the sign many people were born under may now be different, it shouldn't affect horoscope readings, according to NBC.

Earth is currently in a different spot in relation to the Sun, and its equatorial alignment has changed from 3,000 years ago when the study of astrology began -- back when 12 zodiac signs were assigned to 12 different periods of the year.

Those signs you were born into are different now because the Earth's wobble on its axis has created a one-month bump in the alignment of the stars, according to Kunkle.

"Because of this change of tilt, the Earth is really over here in effect and Sun is in a different constellation than it was 3,000 years ago."