No, they haven't.
Astrologers somehow decided LONG ago to adopt a more readily version of TWELVE signs instead of including the "latest identified sign", Ophiuchus.
There has been much speculation regarding the news that the Zodiac signs have changed. There will always be several schools of thought on the subject, but thus far, all professional astrologers I have contact with state that they have not changed.
The dates for the star signs has changed due to the precession of the equinoxes.
12 Signs Of The Zodiac (refers to Sun Signs or Star Signs)
Scientist says the sun has changed in 3 different ways, colour, size and distance.
12 Signs Of The Zodiac (refers to Sun Signs or Star Signs)
No. Your Zodiac sign is determined by the time (minute, hour, day, month, year) and the place (latitude & longitude) of your birth. (If you're wondering if your Zodiac sign has now changed - since the rumor in January 2011 that you'd be changing Zodiac signs - see the Related question.)
The zodiac has remained the same. There are 12 signs used in the traditional western zodiac. Due to the precession of the equinoxes, the dates for the zodiac signs have changed slightly in comparison to their traditional tropical dates. Astronomically there are 13 zodiac signs, because the Sun also goes through the constellation of Ophiuchus for a few days between November and December.
Both Aries
The different Sun Signs of the Zodiac are: Aries Taurus Gemini Cancer Leo Virgo Libra Scorpio Sagittarius Capricorn Aquarius Pisces
There are no signs or warnings. It can look great and break the next day. That is why they are changed at a specific interval.
The Chinese signs are according to the year of birth not the western zodiac Sun signs.
The Sun signs of November are Scorpio and Sagittarius.