1991.2. What constellation should19 be?

Because of the change of the ecliptic, the constellation changes slightly every year. Usually a few days apart. You are at the junction of Aquarius and Pisces. On February 199 1 day, Aquarius occupied Pisces, and you originally belonged to Pisces were occupied by Aquarius.

Simply put, you have a dual constellation personality, Pisces in your heart and Aquarius in your appearance.