What constellation is September 15?

Virgo. Virgo is the sixth house of the zodiac, and the date of birth is from August 23rd to September 22nd every year, so September15th in the solar calendar is Virgo. The twelve constellations include Aquarius, Pisces, Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius and Capricorn.