Your birthday star:
Your birthday star is in the constellation Mensa.
(Too bad I'm not smart enough to belong to Mensa.
THEN I WOULD RULE THE WORLD!!11!)
(that, or the neighborhood Childrens' Theater)
Bwahahahahahaha *inhale* hahahahaha!
It has the name á (Alpha) Mensae in Johann Bayer's Uranometria star catalog. It is called NS 0610-7445 in the NStars database.
It has visual magnitude 5.07 meaning that you could just see this star with the naked eye under the best viewing conditions. It is marked in the center of this star chart, at celestial coordinates (J2000 equinox):
Right ascension 6:10:14.5
Declination -74:45:11
This star is 33.1 light years away, which means that the light we see from it today set off on its journey at about the same time that you were born. Come back in a month or two and your birthday star may change, as the light from more distant stars reaches Earth.