If the person you are referring to is a celebrity you will have to give their full name for your question to be answered.
Your astrological sign is determined by your birth date and month.
No. Ones astrological sign based on ones date of birth has no legal, or scientific bearing.
Leo.
It depends on your date of birth and which calendar you use.
It depends on the date and place of birth. They could have their Sun sign in Gemini or Cancer. To find out their Sun sign an astrology chart would have to be created using the date, place and time of birth.
If you mean astrological sign it isn't based on name, but birth date and year.
Update you date Of birth
If your birth date is December 21 your zodiac star sign is Sagittarius (November 23 - December 21). 1987 in Chinese astrology was the Year of the Rabbit.
Born on the 24th of February, 1986, you would be born under the sign of Pisces.
Not for a little while.
all twelve the zodiac sign of an individual is based on birth date and not by name or initial
for just zodiac signs its not birth year but birth date. but if you are talking about Chinese then you would be a tiger.