Vernal equinox and constellation in which constellation is the vernal equinox of a year?

More than 2000 years ago, the vernal equinox was located in Aries, and ancient stargazers designated the constellation where the vernal equinox was located as the first constellation of the ecliptic, namely Aries. In fact, due to precession, the vernal equinox moves slowly westward along the ecliptic for about 50 seconds every year. So the vernal equinox is no longer in Aries, but now it is near the east of λ star in Pisces. As vernal equinox continues to move westward,