NASA has got involved in astrology and determined that there are 13 signs. Here is their updated astrological signs and their dates ...
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
http://kdvr.com/2016/09/22/your-horoscope-may-have-just-changed-nasa-reveals-13th-zodiac-sign/
Now in case you are who this Ophiuchus is, Ophiuchus is real constellation of stars that exists along the same pathway as the zodiac.
Its name is from the Greek Ὀφιοῦχος "serpent-bearer", and it is commonly represented as a man grasping the snake that is represented by the constellation Serpens. Interesting that this serpent-bearer is the 13th constellation. In mythology, Ophiucus is identified with the healer Asclepius, the son of Apollo, who was able to bring the dead back to life. Realizing his power, Hades convinced Zeus to kill Asclepius with a lightning bolt, and he was placed into the stars as a constellation after his death.
The constellation, Ophiuchus, has been known since ancient times, and is better known as Serpentarius, the Serpent Holder. It is included in the list of 48 constellations described by Ptolemy. Ophiuchus is depicted as a man handling a serpent; his body dividing the large snake into two parts, giving way to the symbol used today as an Asclepius – the medical staff. Yeah, that same sorcery of pharmica that Revelation talks about.
Astrologers have not included Ophiuchus in the wheel of Astrological signs because the Sun spends only about nineteen days in this 13th sign of the Mazzaroth. Not that there wasn’t a 13th sign in the Heavens, but as far as Astrologers were concerned, the Sun traveled from the constellation ‘Scorpius’ and then proceeded directly into the sign of Sagittarius. In reality, this was not the case. The Sun, for 19 days of the year, travels through the star constellation ‘Ophiuchus’ before entering Sagittarius from Scorpius thus The sign of Ophiuchus is patterned after the original ‘Serpent Holder’, Enki, a Sumerian god.