My ID card says 199709 18, and my birthday in August of the lunar calendar should be 17, so what constellation am I?

Constellation is a fortune-telling thing for westerners, because westerners have no lunar calendar. The constellation is based on the date of birth in the solar calendar.

Lunar calendar1August 997 17 = Gregorian calendar1September 997 18 = Virgo.

Virgo is thoughtful, very modest, cautious and conservative, patient, good at analysis, demanding perfection in everything, and a perfectionist. But it is easy to give people more pressure, more passive and more serious.