Horoscope - What is your sign?

I woke up to the realisation that a scorpio I was is now no longer true. I am now a Libra! We are also used to knowing just the 12 horoscope signs but now, we have a 13th - Ophiucus. Apparently the Babylonians had an Ophiucus column in their daily horoscopes but it got dropped somewhere between their civilisation and ours. The unlucky 13th?

Robert Roy Britt, author for LiveScience, posted Why Your Horoscope for 2011 Is All Wrong:

Your zodiac sign — Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius or Pisces — was originally based on the constellation the sun was in the day you were born. Thing is, Earth wobbles, a phenomenon called precession.

Over the 2,500 years or so since the zodiac was established, your sign has moved about a month relative to the sun and stars. You're no longer what you think you are, and so if you're an astrology buff, perhaps poised to make a New Year's resolution based on the stars and a reading of your supposed personality, know that you're actually following observations, predictions and advice aimed at another person entirely.

Here's the full truth about your astrological sign.

New set of date ranges for the 12 13 zodiac signs

1. Capricorn - Jan 20 to Feb 16
2. Aquarius - Feb 16 to Mar 11
3. Pisces - Mar 11 to Apr 18
4. Aries - Apr 18 to May 13
5. Taurus - May 13 to Jun 21
6. Gemini - Jun 21 to Jul 20
7. Cancer - Jul 20 to Aug 10
8. Leo - Aug 10 to Sep 16
9. Virgo - Sep 16 to Oct 30
10. Libra - Oct 30 to Nov 23
11. Scorpius - Nov 23 to Nov 29
12. Ophiuchus - Nov 29 to Dec 17 (new zodiac sign)
13. Sagittarius - Dec 17 to Jan 20